Finding the Fourth Proportional to 3,755.89, 5,629.45 and 2,828.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,755.89 : 5,629.45 = 2,828.46 : x
2. Step 2: Convert to fraction form
   3,755.89/5,629.45 = 2,828.46/x
3. Step 3: Cross multiply
   3,755.89x = 5,629.45 × 2,828.46
4. Step 4: Simplify right side
   3,755.89x = 15,922,674.15
5. Step 5: Solve for x
   x = 15,922,674.15/3,755.89
6. Step 6: Final answer
   x = 4,239.39