Finding the Fourth Proportional to 2,020.83, 2,788.69 and 1,136.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.83 : 2,788.69 = 1,136.61 : x
2. Step 2: Convert to fraction form
   2,020.83/2,788.69 = 1,136.61/x
3. Step 3: Cross multiply
   2,020.83x = 2,788.69 × 1,136.61
4. Step 4: Simplify right side
   2,020.83x = 3,169,652.94
5. Step 5: Solve for x
   x = 3,169,652.94/2,020.83
6. Step 6: Final answer
   x = 1,568.49