Finding the Fourth Proportional to 2,469.56, 3,408.42 and 1,422.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.56 : 3,408.42 = 1,422.28 : x
2. Step 2: Convert to fraction form
   2,469.56/3,408.42 = 1,422.28/x
3. Step 3: Cross multiply
   2,469.56x = 3,408.42 × 1,422.28
4. Step 4: Simplify right side
   2,469.56x = 4,847,727.60
5. Step 5: Solve for x
   x = 4,847,727.60/2,469.56
6. Step 6: Final answer
   x = 1,962.99