Finding the Fourth Proportional to 3,883.82, 5,359.70 and 2,311.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.82 : 5,359.70 = 2,311.61 : x
2. Step 2: Convert to fraction form
   3,883.82/5,359.70 = 2,311.61/x
3. Step 3: Cross multiply
   3,883.82x = 5,359.70 × 2,311.61
4. Step 4: Simplify right side
   3,883.82x = 12,389,515.10
5. Step 5: Solve for x
   x = 12,389,515.10/3,883.82
6. Step 6: Final answer
   x = 3,190.04