Trinity Industries ( TRN), an engineering products and services provider to transportation and construction sectors, swung to a profit in the fourth quarter, helped by strong sales. The company earned $25.4 million, or 49 cents a share, in the quarter, compared with a loss of $3 million, or 8 cents a share. Adjusted for a charge for an impairment charge of long-lived assets associated with European rail operations, earnings were 67 cents a share. Analysts polled by Thomson First Call were estimating earnings of $ 22.6 million or 46 cents a share. Fourth-quarter revenue rose 25% from a year-ago to $781.3 million. Analysts were estimating revenue of $756.2 million in the quarter. The fourth quarter revenue was the highest quarterly revenue in the company's history, Trinity said. Revenue of the rail group rose 31% to $531.9 million and revenue of the construction products group increased 27% to $169.4 million, the company said.