Ametek (AME), which makes electric motors, power meters and other goods for aerospace, defense and industrial markets, reported higher fourth-quarter profit, led by a 12% sales surge in its Electronic Instruments group. The company's shares rose 3.3% to a new high Thursday afternoon in above-average volume after it also issued an upbeat forecast for the coming year. Ametek's Q4 earnings per share climbed 17% to 49 cents, a penny above analyst