Finding the Fourth Proportional to 3,953.54, 5,456.03 and 2,185.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.54 : 5,456.03 = 2,185.25 : x
2. Step 2: Convert to fraction form
   3,953.54/5,456.03 = 2,185.25/x
3. Step 3: Cross multiply
   3,953.54x = 5,456.03 × 2,185.25
4. Step 4: Simplify right side
   3,953.54x = 11,922,751.35
5. Step 5: Solve for x
   x = 11,922,751.35/3,953.54
6. Step 6: Final answer
   x = 3,015.71