Finding the Fourth Proportional to 2,469.78, 3,704.96 and 825.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.78 : 3,704.96 = 825.95 : x
2. Step 2: Convert to fraction form
   2,469.78/3,704.96 = 825.95/x
3. Step 3: Cross multiply
   2,469.78x = 3,704.96 × 825.95
4. Step 4: Simplify right side
   2,469.78x = 3,060,111.71
5. Step 5: Solve for x
   x = 3,060,111.71/2,469.78
6. Step 6: Final answer
   x = 1,239.02