Finding the Fourth Proportional to 2,429.31, 3,352.49 and 1,381.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.31 : 3,352.49 = 1,381.38 : x
2. Step 2: Convert to fraction form
   2,429.31/3,352.49 = 1,381.38/x
3. Step 3: Cross multiply
   2,429.31x = 3,352.49 × 1,381.38
4. Step 4: Simplify right side
   2,429.31x = 4,631,062.64
5. Step 5: Solve for x
   x = 4,631,062.64/2,429.31
6. Step 6: Final answer
   x = 1,906.33