Finding the Fourth Proportional to 1,498.70, 2,067.96 and 869.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.70 : 2,067.96 = 869.25 : x
2. Step 2: Convert to fraction form
   1,498.70/2,067.96 = 869.25/x
3. Step 3: Cross multiply
   1,498.70x = 2,067.96 × 869.25
4. Step 4: Simplify right side
   1,498.70x = 1,797,574.23
5. Step 5: Solve for x
   x = 1,797,574.23/1,498.70
6. Step 6: Final answer
   x = 1,199.42