Finding the Fourth Proportional to 2,463.25, 3,695.42 and 820.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,463.25 : 3,695.42 = 820.98 : x
2. Step 2: Convert to fraction form
   2,463.25/3,695.42 = 820.98/x
3. Step 3: Cross multiply
   2,463.25x = 3,695.42 × 820.98
4. Step 4: Simplify right side
   2,463.25x = 3,033,865.91
5. Step 5: Solve for x
   x = 3,033,865.91/2,463.25
6. Step 6: Final answer
   x = 1,231.65