Finding the Fourth Proportional to 2,020.43, 2,788.25 and 1,136.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.43 : 2,788.25 = 1,136.32 : x
2. Step 2: Convert to fraction form
   2,020.43/2,788.25 = 1,136.32/x
3. Step 3: Cross multiply
   2,020.43x = 2,788.25 × 1,136.32
4. Step 4: Simplify right side
   2,020.43x = 3,168,324.62
5. Step 5: Solve for x
   x = 3,168,324.62/2,020.43
6. Step 6: Final answer
   x = 1,568.14