Finding the Fourth Proportional to 1,162.24, 1,603.46 and 664.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.24 : 1,603.46 = 664.52 : x
2. Step 2: Convert to fraction form
   1,162.24/1,603.46 = 664.52/x
3. Step 3: Cross multiply
   1,162.24x = 1,603.46 × 664.52
4. Step 4: Simplify right side
   1,162.24x = 1,065,531.24
5. Step 5: Solve for x
   x = 1,065,531.24/1,162.24
6. Step 6: Final answer
   x = 916.79