Answer:
using System;
class ProjectedRaises {
  static void Main() {
      const float raise = 0.04f;
      double salary1 = 0.0f,salary2 = 0.0f,salary3 = 0.0f; 
Console.WriteLine("Current salary for each employee: ");
      salary1 = Single.Parse(Console.ReadLine());
      salary2 = Single.Parse(Console.ReadLine()); 
      salary3 = Single.Parse(Console.ReadLine()); 
      salary1 = salary1 + raise * salary1;
      salary2 = salary2 + raise * salary2;
      salary3 = salary3 + raise * salary3;
      Console.WriteLine("Next year salary for the employees are: ");
      Console.WriteLine(Math.Round(salary1)); 
      Console.WriteLine(Math.Round(salary2));
      Console.WriteLine(Math.Round(salary3)); 
 }
}
Explanation:
This declares and initializes variable raise as a float constant 
      const float raise = 0.04f;
This declares the salary of each employee as double
      double salary1 = 0.0f,salary2 = 0.0f,salary3 = 0.0f; 
This prompts the user for the salaries of the employee
Console.WriteLine("Current salary for each employee: ");
The next three lines get the salary of the employees
<em>      salary1 = Single.Parse(Console.ReadLine());</em>
<em>      salary2 = Single.Parse(Console.ReadLine()); </em>
<em>      salary3 = Single.Parse(Console.ReadLine()); </em>
The next three lines calculate the new salaries of the employees
<em>      salary1 = salary1 + raise * salary1;</em>
<em>      salary2 = salary2 + raise * salary2;</em>
<em>      salary3 = salary3 + raise * salary3;</em>
This prints the header
      Console.WriteLine("Next year salary for the employees are: ");
The next three lines print the new salaries of the employees
      Console.WriteLine(Math.Round(salary1)); 
      Console.WriteLine(Math.Round(salary2));
      Console.WriteLine(Math.Round(salary3));