Finding the Fourth Proportional to 3,980.41, 5,500.01 and 2,865.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.41 : 5,500.01 = 2,865.04 : x
2. Step 2: Convert to fraction form
   3,980.41/5,500.01 = 2,865.04/x
3. Step 3: Cross multiply
   3,980.41x = 5,500.01 × 2,865.04
4. Step 4: Simplify right side
   3,980.41x = 15,757,748.65
5. Step 5: Solve for x
   x = 15,757,748.65/3,980.41
6. Step 6: Final answer
   x = 3,958.83