Finding the Fourth Proportional to 1,016.35, 1,402.57 and 550.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.35 : 1,402.57 = 550.60 : x
2. Step 2: Convert to fraction form
   1,016.35/1,402.57 = 550.60/x
3. Step 3: Cross multiply
   1,016.35x = 1,402.57 × 550.60
4. Step 4: Simplify right side
   1,016.35x = 772,254.73
5. Step 5: Solve for x
   x = 772,254.73/1,016.35
6. Step 6: Final answer
   x = 759.83