Finding the Fourth Proportional to 1,019.95, 1,529.94 and 326.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.95 : 1,529.94 = 326.69 : x
2. Step 2: Convert to fraction form
   1,019.95/1,529.94 = 326.69/x
3. Step 3: Cross multiply
   1,019.95x = 1,529.94 × 326.69
4. Step 4: Simplify right side
   1,019.95x = 499,816.10
5. Step 5: Solve for x
   x = 499,816.10/1,019.95
6. Step 6: Final answer
   x = 490.04