Calculation of equal amount to deposit each year to get the future amount:
It is given that a manufacturer of triaxial accelerometers wants to have $2,800,000 available 10 years from now. So we can say that Future value is $2,800,000. We are also given that the deposit rate is 6% per year.
In order to find out the equal amount to deposit each year we need to calculate the annuity using the future value of annuity formula as follows;
Annuity = Future value of annuity / FV of $1 annuity
FV of $1 annuity (at 6% rate for 10 years) is 13.18079
Hence,
Annuity =2,800,000 / 13.18079 = 212,430.36
Hence , equal amount to deposit each year is $212,430.36