Finding the Fourth Proportional to 3,931.37, 5,425.20 and 2,162.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931.37 : 5,425.20 = 2,162.96 : x
2. Step 2: Convert to fraction form
   3,931.37/5,425.20 = 2,162.96/x
3. Step 3: Cross multiply
   3,931.37x = 5,425.20 × 2,162.96
4. Step 4: Simplify right side
   3,931.37x = 11,734,490.59
5. Step 5: Solve for x
   x = 11,734,490.59/3,931.37
6. Step 6: Final answer
   x = 2,984.83