Finding the Fourth Proportional to 3,970.96, 5,480.24 and 2,202.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,970.96 : 5,480.24 = 2,202.72 : x
2. Step 2: Convert to fraction form
   3,970.96/5,480.24 = 2,202.72/x
3. Step 3: Cross multiply
   3,970.96x = 5,480.24 × 2,202.72
4. Step 4: Simplify right side
   3,970.96x = 12,071,434.25
5. Step 5: Solve for x
   x = 12,071,434.25/3,970.96
6. Step 6: Final answer
   x = 3,039.93