Carter Corporation's sales are expected to increase from $X in 2012 to $10 million in 2013. Its assets totaled $5 million at the end of 2012. Carter is at full capacity, so its assets must grow in proportion to projected sales. At the end of 2012, current liabilities are $1.8 million, consisting of $500,000 of account payable, $800,000 of notes payable, and $500,000 of accruals. Its profit margin is forecasted to be 8%, and the forecasted retention ratio is 40%. If the firm can achieve this increase in sales without raising funds externally, what was the firm's sales ($X) during 2012? Show your work.