Finding the Fourth Proportional to 1,103.67, 1,655.78 and 454.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.67 : 1,655.78 = 454.59 : x
2. Step 2: Convert to fraction form
   1,103.67/1,655.78 = 454.59/x
3. Step 3: Cross multiply
   1,103.67x = 1,655.78 × 454.59
4. Step 4: Simplify right side
   1,103.67x = 752,698.76
5. Step 5: Solve for x
   x = 752,698.76/1,103.67
6. Step 6: Final answer
   x = 682.00