Whispering, Inc. began work on a $6,666,000 contract in 2017 to construct an office building. During 2017, Whispering, Inc. incurred costs of $1,677,900, billed its customers for $1,270,000, and collected $1,035,000. At December 31, 2017, the estimated additional costs to complete the project total $3,257,100. Prepare Whispering's 2017 journal entries using the percentage-of-completion method. (Credit account titles are automatically indented when amount is entered. Do not indent manually. For costs incurred use account Materials, Cash, Payables. If no entry is required, select "No entry" for the account titles and enter O for the amounts.) Account Titles and Explanation Debit Credit Construction in Process 1677900 Materials, Cash, Payables (To record costs incurred.) Accounts Receivable 1677900 1270000 Billings on Construction in Process (To record billings.) Cash 1270000 1035000 Accounts Receivable 1035000