Finding the Fourth Proportional to 3,958.96, 5,938.72 and 2,315.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.96 : 5,938.72 = 2,315.76 : x
2. Step 2: Convert to fraction form
   3,958.96/5,938.72 = 2,315.76/x
3. Step 3: Cross multiply
   3,958.96x = 5,938.72 × 2,315.76
4. Step 4: Simplify right side
   3,958.96x = 13,752,650.23
5. Step 5: Solve for x
   x = 13,752,650.23/3,958.96
6. Step 6: Final answer
   x = 3,473.80