Finding the Fourth Proportional to 1,016.05, 1,402.14 and 550.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.05 : 1,402.14 = 550.30 : x
2. Step 2: Convert to fraction form
   1,016.05/1,402.14 = 550.30/x
3. Step 3: Cross multiply
   1,016.05x = 1,402.14 × 550.30
4. Step 4: Simplify right side
   1,016.05x = 771,590.63
5. Step 5: Solve for x
   x = 771,590.63/1,016.05
6. Step 6: Final answer
   x = 759.41