Finding the Fourth Proportional to 3,883.54, 5,359.31 and 2,311.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.54 : 5,359.31 = 2,311.69 : x
2. Step 2: Convert to fraction form
   3,883.54/5,359.31 = 2,311.69/x
3. Step 3: Cross multiply
   3,883.54x = 5,359.31 × 2,311.69
4. Step 4: Simplify right side
   3,883.54x = 12,389,063.33
5. Step 5: Solve for x
   x = 12,389,063.33/3,883.54
6. Step 6: Final answer
   x = 3,190.15