Finding the Fourth Proportional to 1,086.60, 1,500.06 and 714.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.60 : 1,500.06 = 714.12 : x
2. Step 2: Convert to fraction form
   1,086.60/1,500.06 = 714.12/x
3. Step 3: Cross multiply
   1,086.60x = 1,500.06 × 714.12
4. Step 4: Simplify right side
   1,086.60x = 1,071,222.85
5. Step 5: Solve for x
   x = 1,071,222.85/1,086.60
6. Step 6: Final answer
   x = 985.85