Finding the Fourth Proportional to 1,182.52, 1,632.21 and 685.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.52 : 1,632.21 = 685.49 : x
2. Step 2: Convert to fraction form
   1,182.52/1,632.21 = 685.49/x
3. Step 3: Cross multiply
   1,182.52x = 1,632.21 × 685.49
4. Step 4: Simplify right side
   1,182.52x = 1,118,863.63
5. Step 5: Solve for x
   x = 1,118,863.63/1,182.52
6. Step 6: Final answer
   x = 946.17