Finding the Fourth Proportional to 5,208.00, 7,187.79 and 3,218.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,208.00 : 7,187.79 = 3,218.43 : x
2. Step 2: Convert to fraction form
   5,208.00/7,187.79 = 3,218.43/x
3. Step 3: Cross multiply
   5,208.00x = 7,187.79 × 3,218.43
4. Step 4: Simplify right side
   5,208.00x = 23,133,419.89
5. Step 5: Solve for x
   x = 23,133,419.89/5,208.00
6. Step 6: Final answer
   x = 4,441.90