Finding the Fourth Proportional to 2,354.29, 3,531.20 and 1,429.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.29 : 3,531.20 = 1,429.60 : x
2. Step 2: Convert to fraction form
   2,354.29/3,531.20 = 1,429.60/x
3. Step 3: Cross multiply
   2,354.29x = 3,531.20 × 1,429.60
4. Step 4: Simplify right side
   2,354.29x = 5,048,178.72
5. Step 5: Solve for x
   x = 5,048,178.72/2,354.29
6. Step 6: Final answer
   x = 2,144.25