Finding the Fourth Proportional to 3,123.52, 4,309.41 and 2,005.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.52 : 4,309.41 = 2,005.06 : x
2. Step 2: Convert to fraction form
   3,123.52/4,309.41 = 2,005.06/x
3. Step 3: Cross multiply
   3,123.52x = 4,309.41 × 2,005.06
4. Step 4: Simplify right side
   3,123.52x = 8,640,625.61
5. Step 5: Solve for x
   x = 8,640,625.61/3,123.52
6. Step 6: Final answer
   x = 2,766.31