Finding the Fourth Proportional to 3,764.43, 5,638.41 and 2,665.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,764.43 : 5,638.41 = 2,665.46 : x
2. Step 2: Convert to fraction form
   3,764.43/5,638.41 = 2,665.46/x
3. Step 3: Cross multiply
   3,764.43x = 5,638.41 × 2,665.46
4. Step 4: Simplify right side
   3,764.43x = 15,028,970.41
5. Step 5: Solve for x
   x = 15,028,970.41/3,764.43
6. Step 6: Final answer
   x = 3,992.36