Finding the Fourth Proportional to 1,100.17, 1,518.15 and 658.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.17 : 1,518.15 = 658.06 : x
2. Step 2: Convert to fraction form
   1,100.17/1,518.15 = 658.06/x
3. Step 3: Cross multiply
   1,100.17x = 1,518.15 × 658.06
4. Step 4: Simplify right side
   1,100.17x = 999,033.79
5. Step 5: Solve for x
   x = 999,033.79/1,100.17
6. Step 6: Final answer
   x = 908.07