David owes a business partner $5861 which was due 2 years ago and $3477 which is due in 1 year. David agrees to pay back both debts at the same time in 6 months. If money earns 4.6% per year compounded quarterly, how much will he pay back in total? Round your final answer to 2 decimal places (nearest cent) and do not enter a dollar sign or a negative value.