Finding the Fourth Proportional to 3,945.27, 5,444.48 and 2,176.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.27 : 5,444.48 = 2,176.88 : x
2. Step 2: Convert to fraction form
   3,945.27/5,444.48 = 2,176.88/x
3. Step 3: Cross multiply
   3,945.27x = 5,444.48 × 2,176.88
4. Step 4: Simplify right side
   3,945.27x = 11,851,941.52
5. Step 5: Solve for x
   x = 11,851,941.52/3,945.27
6. Step 6: Final answer
   x = 3,004.09