Finding the Fourth Proportional to 1,086.72, 1,499.81 and 714.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.72 : 1,499.81 = 714.01 : x
2. Step 2: Convert to fraction form
   1,086.72/1,499.81 = 714.01/x
3. Step 3: Cross multiply
   1,086.72x = 1,499.81 × 714.01
4. Step 4: Simplify right side
   1,086.72x = 1,070,879.34
5. Step 5: Solve for x
   x = 1,070,879.34/1,086.72
6. Step 6: Final answer
   x = 985.42