Finding the Fourth Proportional to 2,339.94, 3,512.42 and 2,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.94 : 3,512.42 = 2,081.60 : x
2. Step 2: Convert to fraction form
   2,339.94/3,512.42 = 2,081.60/x
3. Step 3: Cross multiply
   2,339.94x = 3,512.42 × 2,081.60
4. Step 4: Simplify right side
   2,339.94x = 7,311,453.47
5. Step 5: Solve for x
   x = 7,311,453.47/2,339.94
6. Step 6: Final answer
   x = 3,124.63