Finding the Fourth Proportional to 3,550.78, 5,320.69 and 2,249.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.78 : 5,320.69 = 2,249.52 : x
2. Step 2: Convert to fraction form
   3,550.78/5,320.69 = 2,249.52/x
3. Step 3: Cross multiply
   3,550.78x = 5,320.69 × 2,249.52
4. Step 4: Simplify right side
   3,550.78x = 11,968,998.57
5. Step 5: Solve for x
   x = 11,968,998.57/3,550.78
6. Step 6: Final answer
   x = 3,370.81