Finding the Fourth Proportional to 2,020.49, 2,788.26 and 1,136.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.49 : 2,788.26 = 1,136.30 : x
2. Step 2: Convert to fraction form
   2,020.49/2,788.26 = 1,136.30/x
3. Step 3: Cross multiply
   2,020.49x = 2,788.26 × 1,136.30
4. Step 4: Simplify right side
   2,020.49x = 3,168,303.71
5. Step 5: Solve for x
   x = 3,168,303.71/2,020.49
6. Step 6: Final answer
   x = 1,568.09