Finding the Fourth Proportional to 2,462.54, 3,693.78 and 819.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,462.54 : 3,693.78 = 819.09 : x
2. Step 2: Convert to fraction form
   2,462.54/3,693.78 = 819.09/x
3. Step 3: Cross multiply
   2,462.54x = 3,693.78 × 819.09
4. Step 4: Simplify right side
   2,462.54x = 3,025,538.26
5. Step 5: Solve for x
   x = 3,025,538.26/2,462.54
6. Step 6: Final answer
   x = 1,228.63