Finding the Fourth Proportional to 2,451.85, 3,676.10 and 808.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.85 : 3,676.10 = 808.15 : x
2. Step 2: Convert to fraction form
   2,451.85/3,676.10 = 808.15/x
3. Step 3: Cross multiply
   2,451.85x = 3,676.10 × 808.15
4. Step 4: Simplify right side
   2,451.85x = 2,970,836.17
5. Step 5: Solve for x
   x = 2,970,836.17/2,451.85
6. Step 6: Final answer
   x = 1,211.67