Finding the Fourth Proportional to 2,469.80, 3,704.56 and 826.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.80 : 3,704.56 = 826.18 : x
2. Step 2: Convert to fraction form
   2,469.80/3,704.56 = 826.18/x
3. Step 3: Cross multiply
   2,469.80x = 3,704.56 × 826.18
4. Step 4: Simplify right side
   2,469.80x = 3,060,633.38
5. Step 5: Solve for x
   x = 3,060,633.38/2,469.80
6. Step 6: Final answer
   x = 1,239.22