Finding the Fourth Proportional to 1,018.69, 1,527.42 and 471.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.69 : 1,527.42 = 471.23 : x
2. Step 2: Convert to fraction form
   1,018.69/1,527.42 = 471.23/x
3. Step 3: Cross multiply
   1,018.69x = 1,527.42 × 471.23
4. Step 4: Simplify right side
   1,018.69x = 719,765.98
5. Step 5: Solve for x
   x = 719,765.98/1,018.69
6. Step 6: Final answer
   x = 706.56