Finding the Fourth Proportional to 1,100.59, 1,518.77 and 658.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.59 : 1,518.77 = 658.23 : x
2. Step 2: Convert to fraction form
   1,100.59/1,518.77 = 658.23/x
3. Step 3: Cross multiply
   1,100.59x = 1,518.77 × 658.23
4. Step 4: Simplify right side
   1,100.59x = 999,699.98
5. Step 5: Solve for x
   x = 999,699.98/1,100.59
6. Step 6: Final answer
   x = 908.33