Canadian Tire Corp. Ltd. overcame a number of negative factors to grow its profit in its fourth quarter, including lower prices for the gasoline it sells and unusually warm weather that depressed sales of some seasonal products, especially at its Mark's clothing chain. The Toronto-based company had $241.5 million or $3.01 per share of net income in the quarter ended Jan. 2. That was up about 17 per cent from $206.6 million or $2.44 per share a year earlier, when several expenses were higher.