Finding the Fourth Proportional to 2,020.64, 2,788.46 and 1,136.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.64 : 2,788.46 = 1,136.45 : x
2. Step 2: Convert to fraction form
   2,020.64/2,788.46 = 1,136.45/x
3. Step 3: Cross multiply
   2,020.64x = 2,788.46 × 1,136.45
4. Step 4: Simplify right side
   2,020.64x = 3,168,945.37
5. Step 5: Solve for x
   x = 3,168,945.37/2,020.64
6. Step 6: Final answer
   x = 1,568.29