Finding the Fourth Proportional to 3,883.42, 5,358.72 and 2,311.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.42 : 5,358.72 = 2,311.24 : x
2. Step 2: Convert to fraction form
   3,883.42/5,358.72 = 2,311.24/x
3. Step 3: Cross multiply
   3,883.42x = 5,358.72 × 2,311.24
4. Step 4: Simplify right side
   3,883.42x = 12,385,288.01
5. Step 5: Solve for x
   x = 12,385,288.01/3,883.42
6. Step 6: Final answer
   x = 3,189.27