Finding the Fourth Proportional to 2,067.15, 3,099.86 and 834.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.15 : 3,099.86 = 834.23 : x
2. Step 2: Convert to fraction form
   2,067.15/3,099.86 = 834.23/x
3. Step 3: Cross multiply
   2,067.15x = 3,099.86 × 834.23
4. Step 4: Simplify right side
   2,067.15x = 2,585,976.54
5. Step 5: Solve for x
   x = 2,585,976.54/2,067.15
6. Step 6: Final answer
   x = 1,250.99