Finding the Fourth Proportional to 2,470.38, 3,704.81 and 826.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.38 : 3,704.81 = 826.55 : x
2. Step 2: Convert to fraction form
   2,470.38/3,704.81 = 826.55/x
3. Step 3: Cross multiply
   2,470.38x = 3,704.81 × 826.55
4. Step 4: Simplify right side
   2,470.38x = 3,062,188.05
5. Step 5: Solve for x
   x = 3,062,188.05/2,470.38
6. Step 6: Final answer
   x = 1,239.56