... Alcoa Inc., the largest U.S. aluminum producer, reported its highest profit in nine quarters after the price of the metal approached pre-recession levels. The shares fell after sales missed analysts’ estimates. Net income of $258 million, or 24 cents a share, compared with a net loss of $277 million, or 28 cents, a year earlier, Alcoa said today in a statement. Sales gained 4 percent to $5.65 billion from $5.43 billion, missing the $5.75 billion average estimate of seven analysts in a Bloomberg survey. ....