Finding the Fourth Proportional to 4,478.76, 6,171.93 and 3,297.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,478.76 : 6,171.93 = 3,297.78 : x
2. Step 2: Convert to fraction form
   4,478.76/6,171.93 = 3,297.78/x
3. Step 3: Cross multiply
   4,478.76x = 6,171.93 × 3,297.78
4. Step 4: Simplify right side
   4,478.76x = 20,353,667.32
5. Step 5: Solve for x
   x = 20,353,667.32/4,478.76
6. Step 6: Final answer
   x = 4,544.49