Finding the Fourth Proportional to 3,920.16, 5,408.44 and 2,426.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.16 : 5,408.44 = 2,426.52 : x
2. Step 2: Convert to fraction form
   3,920.16/5,408.44 = 2,426.52/x
3. Step 3: Cross multiply
   3,920.16x = 5,408.44 × 2,426.52
4. Step 4: Simplify right side
   3,920.16x = 13,123,687.83
5. Step 5: Solve for x
   x = 13,123,687.83/3,920.16
6. Step 6: Final answer
   x = 3,347.74