Finding the Fourth Proportional to 2,080.72, 2,871.18 and 1,196.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.72 : 2,871.18 = 1,196.35 : x
2. Step 2: Convert to fraction form
   2,080.72/2,871.18 = 1,196.35/x
3. Step 3: Cross multiply
   2,080.72x = 2,871.18 × 1,196.35
4. Step 4: Simplify right side
   2,080.72x = 3,434,936.19
5. Step 5: Solve for x
   x = 3,434,936.19/2,080.72
6. Step 6: Final answer
   x = 1,650.84