Finding the Fourth Proportional to 1,162.49, 1,602.88 and 867.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.49 : 1,602.88 = 867.24 : x
2. Step 2: Convert to fraction form
   1,162.49/1,602.88 = 867.24/x
3. Step 3: Cross multiply
   1,162.49x = 1,602.88 × 867.24
4. Step 4: Simplify right side
   1,162.49x = 1,390,085.49
5. Step 5: Solve for x
   x = 1,390,085.49/1,162.49
6. Step 6: Final answer
   x = 1,195.78