Finding the Fourth Proportional to 2,738.16, 4,106.86 and 889.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.16 : 4,106.86 = 889.30 : x
2. Step 2: Convert to fraction form
   2,738.16/4,106.86 = 889.30/x
3. Step 3: Cross multiply
   2,738.16x = 4,106.86 × 889.30
4. Step 4: Simplify right side
   2,738.16x = 3,652,226.15
5. Step 5: Solve for x
   x = 3,652,226.15/2,738.16
6. Step 6: Final answer
   x = 1,333.82