Finding the Fourth Proportional to 1,136.50, 1,705.53 and 443.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.50 : 1,705.53 = 443.17 : x
2. Step 2: Convert to fraction form
   1,136.50/1,705.53 = 443.17/x
3. Step 3: Cross multiply
   1,136.50x = 1,705.53 × 443.17
4. Step 4: Simplify right side
   1,136.50x = 755,831.20
5. Step 5: Solve for x
   x = 755,831.20/1,136.50
6. Step 6: Final answer
   x = 665.05