Finding the Fourth Proportional to 2,552.10, 3,820.94 and 2,080.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.10 : 3,820.94 = 2,080.78 : x
2. Step 2: Convert to fraction form
   2,552.10/3,820.94 = 2,080.78/x
3. Step 3: Cross multiply
   2,552.10x = 3,820.94 × 2,080.78
4. Step 4: Simplify right side
   2,552.10x = 7,950,535.53
5. Step 5: Solve for x
   x = 7,950,535.53/2,552.10
6. Step 6: Final answer
   x = 3,115.29