Where is the number four cylinder located on a 1999 Chevrolet Malibu with 2.4 L Engine?

In a 1999 Chevrolet Malibu with a 2.4L engine (likely an inline-4), the cylinders are numbered 1-4 from the timing belt/chain end of the engine to the opposite end. Therefore, cylinder #4 is at the opposite end from the timing belt/chain. You'll need to look at the engine from the front of the car (looking at the radiator) to properly identify it.