Finding the Fourth Proportional to 2,665.80, 3,995.46 and 2,335.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.80 : 3,995.46 = 2,335.86 : x
2. Step 2: Convert to fraction form
   2,665.80/3,995.46 = 2,335.86/x
3. Step 3: Cross multiply
   2,665.80x = 3,995.46 × 2,335.86
4. Step 4: Simplify right side
   2,665.80x = 9,332,835.20
5. Step 5: Solve for x
   x = 9,332,835.20/2,665.80
6. Step 6: Final answer
   x = 3,500.95