Finding the Fourth Proportional to 2,629.82, 3,938.42 and 2,080.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.82 : 3,938.42 = 2,080.22 : x
2. Step 2: Convert to fraction form
   2,629.82/3,938.42 = 2,080.22/x
3. Step 3: Cross multiply
   2,629.82x = 3,938.42 × 2,080.22
4. Step 4: Simplify right side
   2,629.82x = 8,192,780.05
5. Step 5: Solve for x
   x = 8,192,780.05/2,629.82
6. Step 6: Final answer
   x = 3,115.34