Finding the Fourth Proportional to 1,031.50, 1,544.48 and 867.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.50 : 1,544.48 = 867.47 : x
2. Step 2: Convert to fraction form
   1,031.50/1,544.48 = 867.47/x
3. Step 3: Cross multiply
   1,031.50x = 1,544.48 × 867.47
4. Step 4: Simplify right side
   1,031.50x = 1,339,785.73
5. Step 5: Solve for x
   x = 1,339,785.73/1,031.50
6. Step 6: Final answer
   x = 1,298.88