Finding the Fourth Proportional to 3,700.18, 5,105.76 and 2,208.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,700.18 : 5,105.76 = 2,208.28 : x
2. Step 2: Convert to fraction form
   3,700.18/5,105.76 = 2,208.28/x
3. Step 3: Cross multiply
   3,700.18x = 5,105.76 × 2,208.28
4. Step 4: Simplify right side
   3,700.18x = 11,274,947.69
5. Step 5: Solve for x
   x = 11,274,947.69/3,700.18
6. Step 6: Final answer
   x = 3,047.13