Finding the Fourth Proportional to 1,100.18, 1,518.22 and 657.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.18 : 1,518.22 = 657.83 : x
2. Step 2: Convert to fraction form
   1,100.18/1,518.22 = 657.83/x
3. Step 3: Cross multiply
   1,100.18x = 1,518.22 × 657.83
4. Step 4: Simplify right side
   1,100.18x = 998,723.89
5. Step 5: Solve for x
   x = 998,723.89/1,100.18
6. Step 6: Final answer
   x = 907.79