Finding the Fourth Proportional to 2,738.31, 4,107.46 and 889.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.31 : 4,107.46 = 889.61 : x
2. Step 2: Convert to fraction form
   2,738.31/4,107.46 = 889.61/x
3. Step 3: Cross multiply
   2,738.31x = 4,107.46 × 889.61
4. Step 4: Simplify right side
   2,738.31x = 3,654,037.49
5. Step 5: Solve for x
   x = 3,654,037.49/2,738.31
6. Step 6: Final answer
   x = 1,334.41