Finding the Fourth Proportional to 2,550.15, 3,822.03 and 1,380.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.15 : 3,822.03 = 1,380.15 : x
2. Step 2: Convert to fraction form
   2,550.15/3,822.03 = 1,380.15/x
3. Step 3: Cross multiply
   2,550.15x = 3,822.03 × 1,380.15
4. Step 4: Simplify right side
   2,550.15x = 5,274,974.70
5. Step 5: Solve for x
   x = 5,274,974.70/2,550.15
6. Step 6: Final answer
   x = 2,068.50