Finding the Fourth Proportional to 2,005.39, 2,767.57 and 1,121.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.39 : 2,767.57 = 1,121.24 : x
2. Step 2: Convert to fraction form
   2,005.39/2,767.57 = 1,121.24/x
3. Step 3: Cross multiply
   2,005.39x = 2,767.57 × 1,121.24
4. Step 4: Simplify right side
   2,005.39x = 3,103,114.30
5. Step 5: Solve for x
   x = 3,103,114.30/2,005.39
6. Step 6: Final answer
   x = 1,547.39