Finding the Fourth Proportional to 1,018.32, 1,527.10 and 401.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.32 : 1,527.10 = 401.82 : x
2. Step 2: Convert to fraction form
   1,018.32/1,527.10 = 401.82/x
3. Step 3: Cross multiply
   1,018.32x = 1,527.10 × 401.82
4. Step 4: Simplify right side
   1,018.32x = 613,619.32
5. Step 5: Solve for x
   x = 613,619.32/1,018.32
6. Step 6: Final answer
   x = 602.58