Finding the Fourth Proportional to 1,019.08, 1,528.49 and 325.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.08 : 1,528.49 = 325.82 : x
2. Step 2: Convert to fraction form
   1,019.08/1,528.49 = 325.82/x
3. Step 3: Cross multiply
   1,019.08x = 1,528.49 × 325.82
4. Step 4: Simplify right side
   1,019.08x = 498,016.03
5. Step 5: Solve for x
   x = 498,016.03/1,019.08
6. Step 6: Final answer
   x = 488.69