Finding the Fourth Proportional to 1,086.76, 1,498.53 and 713.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.76 : 1,498.53 = 713.26 : x
2. Step 2: Convert to fraction form
   1,086.76/1,498.53 = 713.26/x
3. Step 3: Cross multiply
   1,086.76x = 1,498.53 × 713.26
4. Step 4: Simplify right side
   1,086.76x = 1,068,841.51
5. Step 5: Solve for x
   x = 1,068,841.51/1,086.76
6. Step 6: Final answer
   x = 983.51