Finding the Fourth Proportional to 2,287.91, 3,429.81 and 826.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.91 : 3,429.81 = 826.04 : x
2. Step 2: Convert to fraction form
   2,287.91/3,429.81 = 826.04/x
3. Step 3: Cross multiply
   2,287.91x = 3,429.81 × 826.04
4. Step 4: Simplify right side
   2,287.91x = 2,833,143.10
5. Step 5: Solve for x
   x = 2,833,143.10/2,287.91
6. Step 6: Final answer
   x = 1,238.31