Finding the Fourth Proportional to 3,139.89, 4,335.30 and 2,358.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,139.89 : 4,335.30 = 2,358.24 : x
2. Step 2: Convert to fraction form
   3,139.89/4,335.30 = 2,358.24/x
3. Step 3: Cross multiply
   3,139.89x = 4,335.30 × 2,358.24
4. Step 4: Simplify right side
   3,139.89x = 10,223,677.87
5. Step 5: Solve for x
   x = 10,223,677.87/3,139.89
6. Step 6: Final answer
   x = 3,256.06