Finding the Fourth Proportional to 1,182.68, 1,632.01 and 685.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.68 : 1,632.01 = 685.39 : x
2. Step 2: Convert to fraction form
   1,182.68/1,632.01 = 685.39/x
3. Step 3: Cross multiply
   1,182.68x = 1,632.01 × 685.39
4. Step 4: Simplify right side
   1,182.68x = 1,118,563.33
5. Step 5: Solve for x
   x = 1,118,563.33/1,182.68
6. Step 6: Final answer
   x = 945.79