Finding the Fourth Proportional to 2,353.20, 3,522.78 and 1,425.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353.20 : 3,522.78 = 1,425.96 : x
2. Step 2: Convert to fraction form
   2,353.20/3,522.78 = 1,425.96/x
3. Step 3: Cross multiply
   2,353.20x = 3,522.78 × 1,425.96
4. Step 4: Simplify right side
   2,353.20x = 5,023,343.37
5. Step 5: Solve for x
   x = 5,023,343.37/2,353.20
6. Step 6: Final answer
   x = 2,134.69