Finding the Fourth Proportional to 1,160.24, 1,601.15 and 636.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,160.24 : 1,601.15 = 636.27 : x
2. Step 2: Convert to fraction form
   1,160.24/1,601.15 = 636.27/x
3. Step 3: Cross multiply
   1,160.24x = 1,601.15 × 636.27
4. Step 4: Simplify right side
   1,160.24x = 1,018,755.70
5. Step 5: Solve for x
   x = 1,018,755.70/1,160.24
6. Step 6: Final answer
   x = 878.06