Finding the Fourth Proportional to 1,136.62, 1,568.57 and 738.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.62 : 1,568.57 = 738.38 : x
2. Step 2: Convert to fraction form
   1,136.62/1,568.57 = 738.38/x
3. Step 3: Cross multiply
   1,136.62x = 1,568.57 × 738.38
4. Step 4: Simplify right side
   1,136.62x = 1,158,200.72
5. Step 5: Solve for x
   x = 1,158,200.72/1,136.62
6. Step 6: Final answer
   x = 1,018.99