Finding the Fourth Proportional to 1,100.58, 1,518.82 and 658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.58 : 1,518.82 = 658.50 : x
2. Step 2: Convert to fraction form
   1,100.58/1,518.82 = 658.50/x
3. Step 3: Cross multiply
   1,100.58x = 1,518.82 × 658.50
4. Step 4: Simplify right side
   1,100.58x = 1,000,141.32
5. Step 5: Solve for x
   x = 1,000,141.32/1,100.58
6. Step 6: Final answer
   x = 908.74