Finding the Fourth Proportional to 3,160.33, 4,358.89 and 2,320.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,160.33 : 4,358.89 = 2,320.78 : x
2. Step 2: Convert to fraction form
   3,160.33/4,358.89 = 2,320.78/x
3. Step 3: Cross multiply
   3,160.33x = 4,358.89 × 2,320.78
4. Step 4: Simplify right side
   3,160.33x = 10,116,024.73
5. Step 5: Solve for x
   x = 10,116,024.73/3,160.33
6. Step 6: Final answer
   x = 3,200.94