Finding the Fourth Proportional to 2,065.57, 2,850.51 and 1,121.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.57 : 2,850.51 = 1,121.38 : x
2. Step 2: Convert to fraction form
   2,065.57/2,850.51 = 1,121.38/x
3. Step 3: Cross multiply
   2,065.57x = 2,850.51 × 1,121.38
4. Step 4: Simplify right side
   2,065.57x = 3,196,504.90
5. Step 5: Solve for x
   x = 3,196,504.90/2,065.57
6. Step 6: Final answer
   x = 1,547.52