Finding the Fourth Proportional to 2,080.87, 2,871.12 and 1,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.87 : 2,871.12 = 1,196.50 : x
2. Step 2: Convert to fraction form
   2,080.87/2,871.12 = 1,196.50/x
3. Step 3: Cross multiply
   2,080.87x = 2,871.12 × 1,196.50
4. Step 4: Simplify right side
   2,080.87x = 3,435,295.08
5. Step 5: Solve for x
   x = 3,435,295.08/2,080.87
6. Step 6: Final answer
   x = 1,650.89