Finding the Fourth Proportional to 1,016.85, 1,526.37 and 729.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.85 : 1,526.37 = 729.57 : x
2. Step 2: Convert to fraction form
   1,016.85/1,526.37 = 729.57/x
3. Step 3: Cross multiply
   1,016.85x = 1,526.37 × 729.57
4. Step 4: Simplify right side
   1,016.85x = 1,113,593.76
5. Step 5: Solve for x
   x = 1,113,593.76/1,016.85
6. Step 6: Final answer
   x = 1,095.14