Pollution control equipment for a pulverized coal cyclone furnace is estimated to cost $230,000, 2 years from now, and, an additional $120,000, 4 years from now. If Monongahela Power wants to set aside enough money now, to cover these future costs, how much must be invested at an interest rate of 8% per year, compounded quarterly? At 8% interest, Monongahela Power has to invest $