Finding the Fourth Proportional to 3,958.62, 5,460.33 and 3,117.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.62 : 5,460.33 = 3,117.96 : x
2. Step 2: Convert to fraction form
   3,958.62/5,460.33 = 3,117.96/x
3. Step 3: Cross multiply
   3,958.62x = 5,460.33 × 3,117.96
4. Step 4: Simplify right side
   3,958.62x = 17,025,090.53
5. Step 5: Solve for x
   x = 17,025,090.53/3,958.62
6. Step 6: Final answer
   x = 4,300.76