Finding the Fourth Proportional to 5,383.17, 7,426.72 and 3,970.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,383.17 : 7,426.72 = 3,970.22 : x
2. Step 2: Convert to fraction form
   5,383.17/7,426.72 = 3,970.22/x
3. Step 3: Cross multiply
   5,383.17x = 7,426.72 × 3,970.22
4. Step 4: Simplify right side
   5,383.17x = 29,485,720.92
5. Step 5: Solve for x
   x = 29,485,720.92/5,383.17
6. Step 6: Final answer
   x = 5,477.39