Three years from now, a couple plans to spend 4 months traveling in China, Japan, and Southeast Asia. When they take their trip, they would like to withdraw $13,000 at the beginning of each month to cover their expenses for that month. Starting now, how much must they deposit at the beginning of each month for the next 3 years so that the account will provide the money they want while they are traveling (in $)? Assume that such an account pays 7.8% compounded monthly. (Round your answer to the nearest cent.)