Finding the Fourth Proportional to 1,118.17, 1,534.25 and 1,098.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.17 : 1,534.25 = 1,098.73 : x
2. Step 2: Convert to fraction form
   1,118.17/1,534.25 = 1,098.73/x
3. Step 3: Cross multiply
   1,118.17x = 1,534.25 × 1,098.73
4. Step 4: Simplify right side
   1,118.17x = 1,685,726.50
5. Step 5: Solve for x
   x = 1,685,726.50/1,118.17
6. Step 6: Final answer
   x = 1,507.58