Construction Depot has a new promotional payment plan. All purchases can be paid off on the installment plan with no interest, as long as the total is paid in full within twelve months. There is no down payment but a $40 minimum monthly payment required. If the Howard family buys a shed for $4,250, and they make the minimum payment plus an additional $160 for 11 months, how much will they have to pay in the 12th month?