Finding the Fourth Proportional to 2,056,498.05, 3,082,733.60 and 858,762.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056,498.05 : 3,082,733.60 = 858,762.90 : x
2. Step 2: Convert to fraction form
   2,056,498.05/3,082,733.60 = 858,762.90/x
3. Step 3: Cross multiply
   2,056,498.05x = 3,082,733.60 × 858,762.90
4. Step 4: Simplify right side
   2,056,498.05x = 2,647,337,256,117.18
5. Step 5: Solve for x
   x = 2,647,337,256,117.18/2,056,498.05
6. Step 6: Final answer
   x = 1,287,303.56