Finding the Fourth Proportional to 2,684.34, 4,019.22 and 2,669.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.34 : 4,019.22 = 2,669.76 : x
2. Step 2: Convert to fraction form
   2,684.34/4,019.22 = 2,669.76/x
3. Step 3: Cross multiply
   2,684.34x = 4,019.22 × 2,669.76
4. Step 4: Simplify right side
   2,684.34x = 10,730,352.79
5. Step 5: Solve for x
   x = 10,730,352.79/2,684.34
6. Step 6: Final answer
   x = 3,997.39