Finding the Fourth Proportional to 1,182.98, 1,773.25 and 451.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.98 : 1,773.25 = 451.55 : x
2. Step 2: Convert to fraction form
   1,182.98/1,773.25 = 451.55/x
3. Step 3: Cross multiply
   1,182.98x = 1,773.25 × 451.55
4. Step 4: Simplify right side
   1,182.98x = 800,711.04
5. Step 5: Solve for x
   x = 800,711.04/1,182.98
6. Step 6: Final answer
   x = 676.86