Finding the Fourth Proportional to 1,103.25, 1,655.42 and 454.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.25 : 1,655.42 = 454.53 : x
2. Step 2: Convert to fraction form
   1,103.25/1,655.42 = 454.53/x
3. Step 3: Cross multiply
   1,103.25x = 1,655.42 × 454.53
4. Step 4: Simplify right side
   1,103.25x = 752,435.78
5. Step 5: Solve for x
   x = 752,435.78/1,103.25
6. Step 6: Final answer
   x = 682.02