Finding the Fourth Proportional to 2,080.20, 2,870.17 and 1,293.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.20 : 2,870.17 = 1,293.82 : x
2. Step 2: Convert to fraction form
   2,080.20/2,870.17 = 1,293.82/x
3. Step 3: Cross multiply
   2,080.20x = 2,870.17 × 1,293.82
4. Step 4: Simplify right side
   2,080.20x = 3,713,483.35
5. Step 5: Solve for x
   x = 3,713,483.35/2,080.20
6. Step 6: Final answer
   x = 1,785.16