Finding the Fourth Proportional to 2,339.31, 3,498.63 and 2,081.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.31 : 3,498.63 = 2,081.12 : x
2. Step 2: Convert to fraction form
   2,339.31/3,498.63 = 2,081.12/x
3. Step 3: Cross multiply
   2,339.31x = 3,498.63 × 2,081.12
4. Step 4: Simplify right side
   2,339.31x = 7,281,068.87
5. Step 5: Solve for x
   x = 7,281,068.87/2,339.31
6. Step 6: Final answer
   x = 3,112.49