Need help with this one thanks

EX 9-11 Estimating doubtful accounts OBJ. 4 Performance Bike Co. is a wholesaler of motorcycle supplies. An aging of the company's accounts receivable on December 31 and a historical analysis of the percentage of uncol- lectible accounts in each age category are as follows: Percent Age Interval Balance Uncollectible Not past due $3,250,000 0.8% 1-30 days past due 1,050,000 2.4 31-60 days past due 780,000 7.0 61-90 days past due 320,000 18.0 91-180 days past due 240,000 34.0 Over 180 days past due 150,000 85.0 $5,790,000 Estimate the proper balance of the allowance for doubtful accounts as of December 31