Finding the Fourth Proportional to 2,080.99, 2,872.05 and 1,196.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.99 : 2,872.05 = 1,196.78 : x
2. Step 2: Convert to fraction form
   2,080.99/2,872.05 = 1,196.78/x
3. Step 3: Cross multiply
   2,080.99x = 2,872.05 × 1,196.78
4. Step 4: Simplify right side
   2,080.99x = 3,437,212.00
5. Step 5: Solve for x
   x = 3,437,212.00/2,080.99
6. Step 6: Final answer
   x = 1,651.72