Finding the Fourth Proportional to 1,182.11, 1,773.18 and 451.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.11 : 1,773.18 = 451.72 : x
2. Step 2: Convert to fraction form
   1,182.11/1,773.18 = 451.72/x
3. Step 3: Cross multiply
   1,182.11x = 1,773.18 × 451.72
4. Step 4: Simplify right side
   1,182.11x = 800,978.61
5. Step 5: Solve for x
   x = 800,978.61/1,182.11
6. Step 6: Final answer
   x = 677.59