help. multiple part question

One retailer charges $1024 for a certain computer. A firm of tax accountants buys 7 of these computers. It makes a down payment of $1200 and agrees to amortize the balance with monthly payments at 9% interest for 5 years. Prepare an amortization schedule showing the first four monthly payments for this loan. Write the equation that can be used to find the amount of each monthly payment. PMT=1(1+)PVwherePV= (Type integers or decimals.)