Finding the Fourth Proportional to 2,067.12, 3,099.92 and 834.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.12 : 3,099.92 = 834.20 : x
2. Step 2: Convert to fraction form
   2,067.12/3,099.92 = 834.20/x
3. Step 3: Cross multiply
   2,067.12x = 3,099.92 × 834.20
4. Step 4: Simplify right side
   2,067.12x = 2,585,953.26
5. Step 5: Solve for x
   x = 2,585,953.26/2,067.12
6. Step 6: Final answer
   x = 1,250.99