Finding the Fourth Proportional to 1,097.12, 1,513.84 and 677.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.12 : 1,513.84 = 677.54 : x
2. Step 2: Convert to fraction form
   1,097.12/1,513.84 = 677.54/x
3. Step 3: Cross multiply
   1,097.12x = 1,513.84 × 677.54
4. Step 4: Simplify right side
   1,097.12x = 1,025,687.15
5. Step 5: Solve for x
   x = 1,025,687.15/1,097.12
6. Step 6: Final answer
   x = 934.89