Finding the Fourth Proportional to 1,016.06, 1,402.17 and 550.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.06 : 1,402.17 = 550.31 : x
2. Step 2: Convert to fraction form
   1,016.06/1,402.17 = 550.31/x
3. Step 3: Cross multiply
   1,016.06x = 1,402.17 × 550.31
4. Step 4: Simplify right side
   1,016.06x = 771,631.68
5. Step 5: Solve for x
   x = 771,631.68/1,016.06
6. Step 6: Final answer
   x = 759.43