This problem demonstrates the dependence of an annuity's present value on the size of the periodic payment. Calculate the present

value of $15$ end$-$of$-$year payments of: $($Do not round intermedlate calculations and round your final answers to $2$ decimal places.$)$

a$.$ $$2,200$

b$.$ $$3,200$

c$.$ $$4,200$

Use a discount rate of $6\mathrm{.}2\%$ compounded annually. After completing the calculations, note that the present value is proportional to the

size of the periodic payment.