Finding the Fourth Proportional to 3,945.94, 5,445.69 and 2,552.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.94 : 5,445.69 = 2,552.74 : x
2. Step 2: Convert to fraction form
   3,945.94/5,445.69 = 2,552.74/x
3. Step 3: Cross multiply
   3,945.94x = 5,445.69 × 2,552.74
4. Step 4: Simplify right side
   3,945.94x = 13,901,430.69
5. Step 5: Solve for x
   x = 13,901,430.69/3,945.94
6. Step 6: Final answer
   x = 3,522.97