Finding the Fourth Proportional to 1,097.12, 1,513.82 and 654.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.12 : 1,513.82 = 654.86 : x
2. Step 2: Convert to fraction form
   1,097.12/1,513.82 = 654.86/x
3. Step 3: Cross multiply
   1,097.12x = 1,513.82 × 654.86
4. Step 4: Simplify right side
   1,097.12x = 991,340.17
5. Step 5: Solve for x
   x = 991,340.17/1,097.12
6. Step 6: Final answer
   x = 903.58