Finding the Fourth Proportional to 1,018.14, 1,527.82 and 401.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.14 : 1,527.82 = 401.92 : x
2. Step 2: Convert to fraction form
   1,018.14/1,527.82 = 401.92/x
3. Step 3: Cross multiply
   1,018.14x = 1,527.82 × 401.92
4. Step 4: Simplify right side
   1,018.14x = 614,061.41
5. Step 5: Solve for x
   x = 614,061.41/1,018.14
6. Step 6: Final answer
   x = 603.12