Finding the Fourth Proportional to 1,018.43, 1,527.33 and 433.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.43 : 1,527.33 = 433.42 : x
2. Step 2: Convert to fraction form
   1,018.43/1,527.33 = 433.42/x
3. Step 3: Cross multiply
   1,018.43x = 1,527.33 × 433.42
4. Step 4: Simplify right side
   1,018.43x = 661,973.20
5. Step 5: Solve for x
   x = 661,973.20/1,018.43
6. Step 6: Final answer
   x = 650.00