Finding the Fourth Proportional to 3,301.78, 4,552.72 and 2,105.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,301.78 : 4,552.72 = 2,105.17 : x
2. Step 2: Convert to fraction form
   3,301.78/4,552.72 = 2,105.17/x
3. Step 3: Cross multiply
   3,301.78x = 4,552.72 × 2,105.17
4. Step 4: Simplify right side
   3,301.78x = 9,584,249.56
5. Step 5: Solve for x
   x = 9,584,249.56/3,301.78
6. Step 6: Final answer
   x = 2,902.75