Finding the Fourth Proportional to 1,182.89, 1,632.38 and 685.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.89 : 1,632.38 = 685.62 : x
2. Step 2: Convert to fraction form
   1,182.89/1,632.38 = 685.62/x
3. Step 3: Cross multiply
   1,182.89x = 1,632.38 × 685.62
4. Step 4: Simplify right side
   1,182.89x = 1,119,194.09
5. Step 5: Solve for x
   x = 1,119,194.09/1,182.89
6. Step 6: Final answer
   x = 946.16