Finding the Fourth Proportional to 2,108.82, 3,149.22 and 2,085.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.82 : 3,149.22 = 2,085.92 : x
2. Step 2: Convert to fraction form
   2,108.82/3,149.22 = 2,085.92/x
3. Step 3: Cross multiply
   2,108.82x = 3,149.22 × 2,085.92
4. Step 4: Simplify right side
   2,108.82x = 6,569,020.98
5. Step 5: Solve for x
   x = 6,569,020.98/2,108.82
6. Step 6: Final answer
   x = 3,115.02