Finding the Fourth Proportional to 1,163.39, 1,605.47 and 632.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,163.39 : 1,605.47 = 632.27 : x
2. Step 2: Convert to fraction form
   1,163.39/1,605.47 = 632.27/x
3. Step 3: Cross multiply
   1,163.39x = 1,605.47 × 632.27
4. Step 4: Simplify right side
   1,163.39x = 1,015,085.89
5. Step 5: Solve for x
   x = 1,015,085.89/1,163.39
6. Step 6: Final answer
   x = 872.53