Finding the Fourth Proportional to 3,889.62, 5,800.95 and 3,308.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,889.62 : 5,800.95 = 3,308.31 : x
2. Step 2: Convert to fraction form
   3,889.62/5,800.95 = 3,308.31/x
3. Step 3: Cross multiply
   3,889.62x = 5,800.95 × 3,308.31
4. Step 4: Simplify right side
   3,889.62x = 19,191,340.89
5. Step 5: Solve for x
   x = 19,191,340.89/3,889.62
6. Step 6: Final answer
   x = 4,933.99