Finding the Fourth Proportional to 2,429.12, 3,352.47 and 1,381.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.12 : 3,352.47 = 1,381.34 : x
2. Step 2: Convert to fraction form
   2,429.12/3,352.47 = 1,381.34/x
3. Step 3: Cross multiply
   2,429.12x = 3,352.47 × 1,381.34
4. Step 4: Simplify right side
   2,429.12x = 4,630,900.91
5. Step 5: Solve for x
   x = 4,630,900.91/2,429.12
6. Step 6: Final answer
   x = 1,906.41