Finding the Fourth Proportional to 2,020.54, 2,788.50 and 1,136.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.54 : 2,788.50 = 1,136.29 : x
2. Step 2: Convert to fraction form
   2,020.54/2,788.50 = 1,136.29/x
3. Step 3: Cross multiply
   2,020.54x = 2,788.50 × 1,136.29
4. Step 4: Simplify right side
   2,020.54x = 3,168,541.95
5. Step 5: Solve for x
   x = 3,168,541.95/2,020.54
6. Step 6: Final answer
   x = 1,568.17