Finding the Fourth Proportional to 3,945.29, 5,444.25 and 2,176.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.29 : 5,444.25 = 2,176.91 : x
2. Step 2: Convert to fraction form
   3,945.29/5,444.25 = 2,176.91/x
3. Step 3: Cross multiply
   3,945.29x = 5,444.25 × 2,176.91
4. Step 4: Simplify right side
   3,945.29x = 11,851,604.16
5. Step 5: Solve for x
   x = 11,851,604.16/3,945.29
6. Step 6: Final answer
   x = 3,003.99