Finding the Fourth Proportional to 3,934.08, 5,426.24 and 2,440.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,934.08 : 5,426.24 = 2,440.40 : x
2. Step 2: Convert to fraction form
   3,934.08/5,426.24 = 2,440.40/x
3. Step 3: Cross multiply
   3,934.08x = 5,426.24 × 2,440.40
4. Step 4: Simplify right side
   3,934.08x = 13,242,196.10
5. Step 5: Solve for x
   x = 13,242,196.10/3,934.08
6. Step 6: Final answer
   x = 3,366.02