Finding the Fourth Proportional to 1,086.80, 1,500.52 and 714.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.80 : 1,500.52 = 714.42 : x
2. Step 2: Convert to fraction form
   1,086.80/1,500.52 = 714.42/x
3. Step 3: Cross multiply
   1,086.80x = 1,500.52 × 714.42
4. Step 4: Simplify right side
   1,086.80x = 1,072,001.50
5. Step 5: Solve for x
   x = 1,072,001.50/1,086.80
6. Step 6: Final answer
   x = 986.38