Finding the Fourth Proportional to 3,942.69, 5,439.83 and 2,264.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.69 : 5,439.83 = 2,264.01 : x
2. Step 2: Convert to fraction form
   3,942.69/5,439.83 = 2,264.01/x
3. Step 3: Cross multiply
   3,942.69x = 5,439.83 × 2,264.01
4. Step 4: Simplify right side
   3,942.69x = 12,315,818.20
5. Step 5: Solve for x
   x = 12,315,818.20/3,942.69
6. Step 6: Final answer
   x = 3,123.71