Finding the Fourth Proportional to 1,098.18, 1,514.89 and 705.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.18 : 1,514.89 = 705.27 : x
2. Step 2: Convert to fraction form
   1,098.18/1,514.89 = 705.27/x
3. Step 3: Cross multiply
   1,098.18x = 1,514.89 × 705.27
4. Step 4: Simplify right side
   1,098.18x = 1,068,398.90
5. Step 5: Solve for x
   x = 1,068,398.90/1,098.18
6. Step 6: Final answer
   x = 972.88