Finding the Fourth Proportional to 3,865.52, 5,799.72 and 2,305.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865.52 : 5,799.72 = 2,305.28 : x
2. Step 2: Convert to fraction form
   3,865.52/5,799.72 = 2,305.28/x
3. Step 3: Cross multiply
   3,865.52x = 5,799.72 × 2,305.28
4. Step 4: Simplify right side
   3,865.52x = 13,369,978.52
5. Step 5: Solve for x
   x = 13,369,978.52/3,865.52
6. Step 6: Final answer
   x = 3,458.78