Finding the Fourth Proportional to 2,025.62, 3,039.83 and 855.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.62 : 3,039.83 = 855.65 : x
2. Step 2: Convert to fraction form
   2,025.62/3,039.83 = 855.65/x
3. Step 3: Cross multiply
   2,025.62x = 3,039.83 × 855.65
4. Step 4: Simplify right side
   2,025.62x = 2,601,011.06
5. Step 5: Solve for x
   x = 2,601,011.06/2,025.62
6. Step 6: Final answer
   x = 1,284.06