Finding the Fourth Proportional to 2,080.60, 2,872.03 and 1,284.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.60 : 2,872.03 = 1,284.06 : x
2. Step 2: Convert to fraction form
   2,080.60/2,872.03 = 1,284.06/x
3. Step 3: Cross multiply
   2,080.60x = 2,872.03 × 1,284.06
4. Step 4: Simplify right side
   2,080.60x = 3,687,843.10
5. Step 5: Solve for x
   x = 3,687,843.10/2,080.60
6. Step 6: Final answer
   x = 1,772.49