Finding the Fourth Proportional to 2,080.20, 2,871.17 and 1,196.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.20 : 2,871.17 = 1,196.51 : x
2. Step 2: Convert to fraction form
   2,080.20/2,871.17 = 1,196.51/x
3. Step 3: Cross multiply
   2,080.20x = 2,871.17 × 1,196.51
4. Step 4: Simplify right side
   2,080.20x = 3,435,363.28
5. Step 5: Solve for x
   x = 3,435,363.28/2,080.20
6. Step 6: Final answer
   x = 1,651.46