Montgomery Industries spent $560,000 in 2020 on a construction project to build a library. Montgomery also capitalized $28,000 of interest on the project in 2020. Montgomery financed 100% of the construction with a 8% construction loan. The project was completed on September 30, 2021. Additional expenditures in 2021 were as follows: Feb. 28 Apr. 30 Jul. 1 Sept. 30 $ 86,400 176,400 32,400 60,400 Required: Determine the completed cost of the library. (Do not round intermediate calculations.) Completed cost of the library