Finding the Fourth Proportional to 2,080.85, 3,115.49 and 1,348.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.85 : 3,115.49 = 1,348.20 : x
2. Step 2: Convert to fraction form
   2,080.85/3,115.49 = 1,348.20/x
3. Step 3: Cross multiply
   2,080.85x = 3,115.49 × 1,348.20
4. Step 4: Simplify right side
   2,080.85x = 4,200,296.88
5. Step 5: Solve for x
   x = 4,200,296.88/2,080.85
6. Step 6: Final answer
   x = 2,018.55