Finding the Fourth Proportional to 1,136.32, 1,705.32 and 443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.32 : 1,705.32 = 443.10 : x
2. Step 2: Convert to fraction form
   1,136.32/1,705.32 = 443.10/x
3. Step 3: Cross multiply
   1,136.32x = 1,705.32 × 443.10
4. Step 4: Simplify right side
   1,136.32x = 755,627.29
5. Step 5: Solve for x
   x = 755,627.29/1,136.32
6. Step 6: Final answer
   x = 664.98