Finding the Fourth Proportional to 3,900.83, 5,840.51 and 2,960.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.83 : 5,840.51 = 2,960.96 : x
2. Step 2: Convert to fraction form
   3,900.83/5,840.51 = 2,960.96/x
3. Step 3: Cross multiply
   3,900.83x = 5,840.51 × 2,960.96
4. Step 4: Simplify right side
   3,900.83x = 17,293,472.48
5. Step 5: Solve for x
   x = 17,293,472.48/3,900.83
6. Step 6: Final answer
   x = 4,433.29