Finding the Fourth Proportional to 1,162.69, 1,605.25 and 808.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.69 : 1,605.25 = 808.48 : x
2. Step 2: Convert to fraction form
   1,162.69/1,605.25 = 808.48/x
3. Step 3: Cross multiply
   1,162.69x = 1,605.25 × 808.48
4. Step 4: Simplify right side
   1,162.69x = 1,297,815.54
5. Step 5: Solve for x
   x = 1,297,815.54/1,162.69
6. Step 6: Final answer
   x = 1,116.22