Finding the Fourth Proportional to 2,738.87, 4,108.53 and 889.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.87 : 4,108.53 = 889.25 : x
2. Step 2: Convert to fraction form
   2,738.87/4,108.53 = 889.25/x
3. Step 3: Cross multiply
   2,738.87x = 4,108.53 × 889.25
4. Step 4: Simplify right side
   2,738.87x = 3,653,505.86
5. Step 5: Solve for x
   x = 3,653,505.86/2,738.87
6. Step 6: Final answer
   x = 1,333.95