Finding the Fourth Proportional to 1,498.12, 2,067.42 and 868.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.12 : 2,067.42 = 868.76 : x
2. Step 2: Convert to fraction form
   1,498.12/2,067.42 = 868.76/x
3. Step 3: Cross multiply
   1,498.12x = 2,067.42 × 868.76
4. Step 4: Simplify right side
   1,498.12x = 1,796,091.80
5. Step 5: Solve for x
   x = 1,796,091.80/1,498.12
6. Step 6: Final answer
   x = 1,198.90