Finding the Fourth Proportional to 2,785.02, 3,845.91 and 2,085.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.02 : 3,845.91 = 2,085.18 : x
2. Step 2: Convert to fraction form
   2,785.02/3,845.91 = 2,085.18/x
3. Step 3: Cross multiply
   2,785.02x = 3,845.91 × 2,085.18
4. Step 4: Simplify right side
   2,785.02x = 8,019,414.61
5. Step 5: Solve for x
   x = 8,019,414.61/2,785.02
6. Step 6: Final answer
   x = 2,879.48