Finding the Fourth Proportional to 2,463.18, 3,693.52 and 819.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,463.18 : 3,693.52 = 819.15 : x
2. Step 2: Convert to fraction form
   2,463.18/3,693.52 = 819.15/x
3. Step 3: Cross multiply
   2,463.18x = 3,693.52 × 819.15
4. Step 4: Simplify right side
   2,463.18x = 3,025,546.91
5. Step 5: Solve for x
   x = 3,025,546.91/2,463.18
6. Step 6: Final answer
   x = 1,228.31