Ivan is saving for retirement. He will depost X at the end of each month for the next 22 years. Starting after the last deposit, he will withdraw $1,200 at the end of the first year, $2,400 at the end of the second year, $3,600 at the end of the third year and so on for 12 years. The nominal annual interest rate compounded monthly is 4.8%. Use annuity functions to compute your answer. (a) Find the amount in Ivans account at the end of year 22. (b) Find the value of the 12 years of withrawals at year 22. (c) Find X.