Waterway Industries is constructing a building. Construction began on January 1 and was completed on December 31. Expenditures were $6400000 on March 1, $5250000 on June 1, and $8650000 on December 31. Waterway Industries borrowed $3200000 on January 1 on a 5-year, 11% note to help finance construction of the building. In addition, the company had outstanding all year a 9%, 3-year, $6440000 note payable and an 10%, 4-year, $12550000 note payable.

Required:
What are the weighted-average accumulated expenditures?