Brian bought a new air conditioning unit on his credit card. The unit had a base price of $435. Brian made no other purchases on his credit card. Brian's credit card has an interest rate of 9.4%, compounded monthly, and Brian paid off the balance by making monthly payments for a year and a half. If the sales tax in Brian's area is 8.51%, how much did Brian pay in total? (Round all dollar values to the nearest cent.)