Finding the Fourth Proportional to 2,057.09, 2,838.83 and 1,249.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.09 : 2,838.83 = 1,249.56 : x
2. Step 2: Convert to fraction form
   2,057.09/2,838.83 = 1,249.56/x
3. Step 3: Cross multiply
   2,057.09x = 2,838.83 × 1,249.56
4. Step 4: Simplify right side
   2,057.09x = 3,547,282.17
5. Step 5: Solve for x
   x = 3,547,282.17/2,057.09
6. Step 6: Final answer
   x = 1,724.42