Finding the Fourth Proportional to 1,086.73, 1,498.30 and 713.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.73 : 1,498.30 = 713.07 : x
2. Step 2: Convert to fraction form
   1,086.73/1,498.30 = 713.07/x
3. Step 3: Cross multiply
   1,086.73x = 1,498.30 × 713.07
4. Step 4: Simplify right side
   1,086.73x = 1,068,381.72
5. Step 5: Solve for x
   x = 1,068,381.72/1,086.73
6. Step 6: Final answer
   x = 983.12