Finding the Fourth Proportional to 3,480.84, 5,222.88 and 3,328.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,480.84 : 5,222.88 = 3,328.56 : x
2. Step 2: Convert to fraction form
   3,480.84/5,222.88 = 3,328.56/x
3. Step 3: Cross multiply
   3,480.84x = 5,222.88 × 3,328.56
4. Step 4: Simplify right side
   3,480.84x = 17,384,669.45
5. Step 5: Solve for x
   x = 17,384,669.45/3,480.84
6. Step 6: Final answer
   x = 4,994.39