Finding the Fourth Proportional to 1,152.06, 1,727.91 and 330.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.06 : 1,727.91 = 330.42 : x
2. Step 2: Convert to fraction form
   1,152.06/1,727.91 = 330.42/x
3. Step 3: Cross multiply
   1,152.06x = 1,727.91 × 330.42
4. Step 4: Simplify right side
   1,152.06x = 570,936.02
5. Step 5: Solve for x
   x = 570,936.02/1,152.06
6. Step 6: Final answer
   x = 495.58