Mercurius forecasts the following sales figures for the next four months. June 420,000 July 350,000 August 380,000 September 440,000 Cash sales average 15% of total sales. Credit sales are collected 60% in the month of sale and 40% in the month following sale. What is Mercurius' estimated accounts receivable balance on 31 July? (Answer without comma separators, e.g., 1000 instead of 1,000) Answer: X