Finding the Fourth Proportional to 2,739.54, 4,108.82 and 890.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,739.54 : 4,108.82 = 890.38 : x
2. Step 2: Convert to fraction form
   2,739.54/4,108.82 = 890.38/x
3. Step 3: Cross multiply
   2,739.54x = 4,108.82 × 890.38
4. Step 4: Simplify right side
   2,739.54x = 3,658,411.15
5. Step 5: Solve for x
   x = 3,658,411.15/2,739.54
6. Step 6: Final answer
   x = 1,335.41