Finding the Fourth Proportional to 3,945.72, 5,444.88 and 2,177.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.72 : 5,444.88 = 2,177.00 : x
2. Step 2: Convert to fraction form
   3,945.72/5,444.88 = 2,177.00/x
3. Step 3: Cross multiply
   3,945.72x = 5,444.88 × 2,177.00
4. Step 4: Simplify right side
   3,945.72x = 11,853,476.54
5. Step 5: Solve for x
   x = 11,853,476.54/3,945.72
6. Step 6: Final answer
   x = 3,004.14