Finding the Fourth Proportional to 3,881.46, 5,357.31 and 2,310.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,881.46 : 5,357.31 = 2,310.45 : x
2. Step 2: Convert to fraction form
   3,881.46/5,357.31 = 2,310.45/x
3. Step 3: Cross multiply
   3,881.46x = 5,357.31 × 2,310.45
4. Step 4: Simplify right side
   3,881.46x = 12,377,796.89
5. Step 5: Solve for x
   x = 12,377,796.89/3,881.46
6. Step 6: Final answer
   x = 3,188.95