Finding the Fourth Proportional to 3,971.16, 5,472.72 and 2,973.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971.16 : 5,472.72 = 2,973.96 : x
2. Step 2: Convert to fraction form
   3,971.16/5,472.72 = 2,973.96/x
3. Step 3: Cross multiply
   3,971.16x = 5,472.72 × 2,973.96
4. Step 4: Simplify right side
   3,971.16x = 16,275,650.37
5. Step 5: Solve for x
   x = 16,275,650.37/3,971.16
6. Step 6: Final answer
   x = 4,098.46