Finding the Fourth Proportional to 1,182.96, 1,632.34 and 685.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.96 : 1,632.34 = 685.53 : x
2. Step 2: Convert to fraction form
   1,182.96/1,632.34 = 685.53/x
3. Step 3: Cross multiply
   1,182.96x = 1,632.34 × 685.53
4. Step 4: Simplify right side
   1,182.96x = 1,119,014.61
5. Step 5: Solve for x
   x = 1,119,014.61/1,182.96
6. Step 6: Final answer
   x = 945.94