Finding the Fourth Proportional to 3,840.92, 5,760.72 and 3,591.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840.92 : 5,760.72 = 3,591.84 : x
2. Step 2: Convert to fraction form
   3,840.92/5,760.72 = 3,591.84/x
3. Step 3: Cross multiply
   3,840.92x = 5,760.72 × 3,591.84
4. Step 4: Simplify right side
   3,840.92x = 20,691,584.52
5. Step 5: Solve for x
   x = 20,691,584.52/3,840.92
6. Step 6: Final answer
   x = 5,387.14