Finding the Fourth Proportional to 3,870.18, 5,776.92 and 3,325.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.18 : 5,776.92 = 3,325.86 : x
2. Step 2: Convert to fraction form
   3,870.18/5,776.92 = 3,325.86/x
3. Step 3: Cross multiply
   3,870.18x = 5,776.92 × 3,325.86
4. Step 4: Simplify right side
   3,870.18x = 19,213,227.15
5. Step 5: Solve for x
   x = 19,213,227.15/3,870.18
6. Step 6: Final answer
   x = 4,964.43