The steps below show the work of a student used to calculate the number of yards in 804.5 meters.
 (1 mile = 1,609 meters)
 (1 mile = 1,760 yards)
 Step 1: 1,609 meters is being multiplied by conversion factor 1 mile over 804.5 meters equals 2 miles
 Step 2: 2 miles is being multiplied by conversion factor 1760 yards over 1 mile equals 3,520 yards
 Step 3: 3,520 yards
 (1 mile = 1,609 meters)
 (1 mile = 1,760 yards)
 How can the error in the student's work be corrected?