Finding the Fourth Proportional to 3,760.28, 5,188.46 and 2,081.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,760.28 : 5,188.46 = 2,081.61 : x
2. Step 2: Convert to fraction form
   3,760.28/5,188.46 = 2,081.61/x
3. Step 3: Cross multiply
   3,760.28x = 5,188.46 × 2,081.61
4. Step 4: Simplify right side
   3,760.28x = 10,800,350.22
5. Step 5: Solve for x
   x = 10,800,350.22/3,760.28
6. Step 6: Final answer
   x = 2,872.22