Finding the Fourth Proportional to 3,993.95, 5,512.10 and 2,315.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.95 : 5,512.10 = 2,315.34 : x
2. Step 2: Convert to fraction form
   3,993.95/5,512.10 = 2,315.34/x
3. Step 3: Cross multiply
   3,993.95x = 5,512.10 × 2,315.34
4. Step 4: Simplify right side
   3,993.95x = 12,762,374.04
5. Step 5: Solve for x
   x = 12,762,374.04/3,993.95
6. Step 6: Final answer
   x = 3,195.42