Finding the Fourth Proportional to 2,462.72, 3,694.32 and 819.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,462.72 : 3,694.32 = 819.38 : x
2. Step 2: Convert to fraction form
   2,462.72/3,694.32 = 819.38/x
3. Step 3: Cross multiply
   2,462.72x = 3,694.32 × 819.38
4. Step 4: Simplify right side
   2,462.72x = 3,027,051.92
5. Step 5: Solve for x
   x = 3,027,051.92/2,462.72
6. Step 6: Final answer
   x = 1,229.15