Finding the Fourth Proportional to 1,498.41, 2,067.91 and 869.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.41 : 2,067.91 = 869.10 : x
2. Step 2: Convert to fraction form
   1,498.41/2,067.91 = 869.10/x
3. Step 3: Cross multiply
   1,498.41x = 2,067.91 × 869.10
4. Step 4: Simplify right side
   1,498.41x = 1,797,220.58
5. Step 5: Solve for x
   x = 1,797,220.58/1,498.41
6. Step 6: Final answer
   x = 1,199.42