Finding the Fourth Proportional to 1,086.33, 1,499.77 and 713.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.33 : 1,499.77 = 713.96 : x
2. Step 2: Convert to fraction form
   1,086.33/1,499.77 = 713.96/x
3. Step 3: Cross multiply
   1,086.33x = 1,499.77 × 713.96
4. Step 4: Simplify right side
   1,086.33x = 1,070,775.79
5. Step 5: Solve for x
   x = 1,070,775.79/1,086.33
6. Step 6: Final answer
   x = 985.68