Finding the Fourth Proportional to 1,016.07, 1,402.16 and 550.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.07 : 1,402.16 = 550.32 : x
2. Step 2: Convert to fraction form
   1,016.07/1,402.16 = 550.32/x
3. Step 3: Cross multiply
   1,016.07x = 1,402.16 × 550.32
4. Step 4: Simplify right side
   1,016.07x = 771,636.69
5. Step 5: Solve for x
   x = 771,636.69/1,016.07
6. Step 6: Final answer
   x = 759.43