Finding the Fourth Proportional to 1,020.22, 1,406.42 and 754.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020.22 : 1,406.42 = 754.27 : x
2. Step 2: Convert to fraction form
   1,020.22/1,406.42 = 754.27/x
3. Step 3: Cross multiply
   1,020.22x = 1,406.42 × 754.27
4. Step 4: Simplify right side
   1,020.22x = 1,060,820.41
5. Step 5: Solve for x
   x = 1,060,820.41/1,020.22
6. Step 6: Final answer
   x = 1,039.80