Finding the Fourth Proportional to 2,469.69, 3,704.74 and 826.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.69 : 3,704.74 = 826.23 : x
2. Step 2: Convert to fraction form
   2,469.69/3,704.74 = 826.23/x
3. Step 3: Cross multiply
   2,469.69x = 3,704.74 × 826.23
4. Step 4: Simplify right side
   2,469.69x = 3,060,979.16
5. Step 5: Solve for x
   x = 3,060,979.16/2,469.69
6. Step 6: Final answer
   x = 1,239.42