Finding the Fourth Proportional to 3,679.45, 5,503.98 and 3,355.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.45 : 5,503.98 = 3,355.05 : x
2. Step 2: Convert to fraction form
   3,679.45/5,503.98 = 3,355.05/x
3. Step 3: Cross multiply
   3,679.45x = 5,503.98 × 3,355.05
4. Step 4: Simplify right side
   3,679.45x = 18,466,100.58
5. Step 5: Solve for x
   x = 18,466,100.58/3,679.45
6. Step 6: Final answer
   x = 5,018.71