For this case we have that the relationship is direct.
Therefore, we have:

Where,
y: distance traveled in kilometers
x: number of liters of fuel
k: proportionality constant
We must look for the value of k. For this, we use the following data:
This car can travel 476 kilometers on 17 liters of fuel.
Substituting values we have:

From here, we clear the value of k:

Therefore, the relationship is:

For 1428 kilometers we have:

Clearing the amount of fuel we have:

Answer:
51 liters of fuel are required for the vehicle to travel 1,428 kilometers