Finding the Fourth Proportional to 2,080.94, 2,871.46 and 1,284.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.94 : 2,871.46 = 1,284.12 : x
2. Step 2: Convert to fraction form
   2,080.94/2,871.46 = 1,284.12/x
3. Step 3: Cross multiply
   2,080.94x = 2,871.46 × 1,284.12
4. Step 4: Simplify right side
   2,080.94x = 3,687,299.22
5. Step 5: Solve for x
   x = 3,687,299.22/2,080.94
6. Step 6: Final answer
   x = 1,771.94