Finding the Fourth Proportional to 2,079.88, 2,870.85 and 1,196.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.88 : 2,870.85 = 1,196.28 : x
2. Step 2: Convert to fraction form
   2,079.88/2,870.85 = 1,196.28/x
3. Step 3: Cross multiply
   2,079.88x = 2,870.85 × 1,196.28
4. Step 4: Simplify right side
   2,079.88x = 3,434,340.44
5. Step 5: Solve for x
   x = 3,434,340.44/2,079.88
6. Step 6: Final answer
   x = 1,651.22