Finding the Fourth Proportional to 2,429.70, 3,352.89 and 1,381.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.70 : 3,352.89 = 1,381.71 : x
2. Step 2: Convert to fraction form
   2,429.70/3,352.89 = 1,381.71/x
3. Step 3: Cross multiply
   2,429.70x = 3,352.89 × 1,381.71
4. Step 4: Simplify right side
   2,429.70x = 4,632,721.64
5. Step 5: Solve for x
   x = 4,632,721.64/2,429.70
6. Step 6: Final answer
   x = 1,906.71