Finding the Fourth Proportional to 1,018.71, 1,527.52 and 470.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.71 : 1,527.52 = 470.42 : x
2. Step 2: Convert to fraction form
   1,018.71/1,527.52 = 470.42/x
3. Step 3: Cross multiply
   1,018.71x = 1,527.52 × 470.42
4. Step 4: Simplify right side
   1,018.71x = 718,575.96
5. Step 5: Solve for x
   x = 718,575.96/1,018.71
6. Step 6: Final answer
   x = 705.38