A rocket moves at the speed of 4.9 miles per second. Ben writes the following steps to calculate this speed in kilometers/hour (km/h). [1 mile = 1.6 kilometer] Step 1: Multiply 4.9 by 1.6. Step 2: Divide the result obtained in step 1 by 60. Step 3: Multiply the result obtained in step 2 by 60. Step 4: Write the number obtained in step 3 with the unit km/h. Which step is incorrect in the conversion?
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