Finding the Fourth Proportional to 2,789.72, 4,185.92 and 1,973.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.72 : 4,185.92 = 1,973.24 : x
2. Step 2: Convert to fraction form
   2,789.72/4,185.92 = 1,973.24/x
3. Step 3: Cross multiply
   2,789.72x = 4,185.92 × 1,973.24
4. Step 4: Simplify right side
   2,789.72x = 8,259,824.78
5. Step 5: Solve for x
   x = 8,259,824.78/2,789.72
6. Step 6: Final answer
   x = 2,960.81