Finding the Fourth Proportional to 2,451.41, 3,676.63 and 807.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.41 : 3,676.63 = 807.72 : x
2. Step 2: Convert to fraction form
   2,451.41/3,676.63 = 807.72/x
3. Step 3: Cross multiply
   2,451.41x = 3,676.63 × 807.72
4. Step 4: Simplify right side
   2,451.41x = 2,969,687.58
5. Step 5: Solve for x
   x = 2,969,687.58/2,451.41
6. Step 6: Final answer
   x = 1,211.42