Finding the Fourth Proportional to 1,498.26, 2,067.49 and 860.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.26 : 2,067.49 = 860.21 : x
2. Step 2: Convert to fraction form
   1,498.26/2,067.49 = 860.21/x
3. Step 3: Cross multiply
   1,498.26x = 2,067.49 × 860.21
4. Step 4: Simplify right side
   1,498.26x = 1,778,475.57
5. Step 5: Solve for x
   x = 1,778,475.57/1,498.26
6. Step 6: Final answer
   x = 1,187.03