Finding the Fourth Proportional to 2,429.10, 3,643.92 and 889.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.10 : 3,643.92 = 889.74 : x
2. Step 2: Convert to fraction form
   2,429.10/3,643.92 = 889.74/x
3. Step 3: Cross multiply
   2,429.10x = 3,643.92 × 889.74
4. Step 4: Simplify right side
   2,429.10x = 3,242,141.38
5. Step 5: Solve for x
   x = 3,242,141.38/2,429.10
6. Step 6: Final answer
   x = 1,334.71