PV=604,551 IS THE ANSWER I JUST WANT TO KNOW THE STEPS

> You are planning for your eventual retirement and you plan to retire in 35 years. You think that you can save $1,500 per year for the next 10 years. For the next 15 years you think you can save $2,500 each year. For the last 10 years, how much will you need to save so that at the end of the 35 years will you have enough saved so that you can withdraw $75,000 each year for the next 15 years? All of your savings will occur at the beginning of each year. Assume a 9% interest rate. PU=604, ss)