Finding the Fourth Proportional to 2,550.90, 3,830.16 and 2,083.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.90 : 3,830.16 = 2,083.80 : x
2. Step 2: Convert to fraction form
   2,550.90/3,830.16 = 2,083.80/x
3. Step 3: Cross multiply
   2,550.90x = 3,830.16 × 2,083.80
4. Step 4: Simplify right side
   2,550.90x = 7,981,287.41
5. Step 5: Solve for x
   x = 7,981,287.41/2,550.90
6. Step 6: Final answer
   x = 3,128.81