Finding the Fourth Proportional to 3,970.82, 5,479.77 and 2,202.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,970.82 : 5,479.77 = 2,202.59 : x
2. Step 2: Convert to fraction form
   3,970.82/5,479.77 = 2,202.59/x
3. Step 3: Cross multiply
   3,970.82x = 5,479.77 × 2,202.59
4. Step 4: Simplify right side
   3,970.82x = 12,069,659.21
5. Step 5: Solve for x
   x = 12,069,659.21/3,970.82
6. Step 6: Final answer
   x = 3,039.59