Finding the Fourth Proportional to 2,739.18, 4,108.83 and 890.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,739.18 : 4,108.83 = 890.29 : x
2. Step 2: Convert to fraction form
   2,739.18/4,108.83 = 890.29/x
3. Step 3: Cross multiply
   2,739.18x = 4,108.83 × 890.29
4. Step 4: Simplify right side
   2,739.18x = 3,658,052.06
5. Step 5: Solve for x
   x = 3,658,052.06/2,739.18
6. Step 6: Final answer
   x = 1,335.46