Finding the Fourth Proportional to 788.52, 1,182.94 and 326.56

Step by Step Solution

1. Step 1: Write the proportion equation
   788.52 : 1,182.94 = 326.56 : x
2. Step 2: Convert to fraction form
   788.52/1,182.94 = 326.56/x
3. Step 3: Cross multiply
   788.52x = 1,182.94 × 326.56
4. Step 4: Simplify right side
   788.52x = 386,300.89
5. Step 5: Solve for x
   x = 386,300.89/788.52
6. Step 6: Final answer
   x = 489.91