Finding the Fourth Proportional to 3,863.70, 5,335.67 and 3,300.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,863.70 : 5,335.67 = 3,300.89 : x
2. Step 2: Convert to fraction form
   3,863.70/5,335.67 = 3,300.89/x
3. Step 3: Cross multiply
   3,863.70x = 5,335.67 × 3,300.89
4. Step 4: Simplify right side
   3,863.70x = 17,612,441.32
5. Step 5: Solve for x
   x = 17,612,441.32/3,863.70
6. Step 6: Final answer
   x = 4,558.44