Finding the Fourth Proportional to 3,993.15, 5,507.60 and 2,930.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.15 : 5,507.60 = 2,930.55 : x
2. Step 2: Convert to fraction form
   3,993.15/5,507.60 = 2,930.55/x
3. Step 3: Cross multiply
   3,993.15x = 5,507.60 × 2,930.55
4. Step 4: Simplify right side
   3,993.15x = 16,140,308.34
5. Step 5: Solve for x
   x = 16,140,308.34/3,993.15
6. Step 6: Final answer
   x = 4,042.00