Finding the Fourth Proportional to 3,757.28, 5,636.83 and 2,648.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,757.28 : 5,636.83 = 2,648.86 : x
2. Step 2: Convert to fraction form
   3,757.28/5,636.83 = 2,648.86/x
3. Step 3: Cross multiply
   3,757.28x = 5,636.83 × 2,648.86
4. Step 4: Simplify right side
   3,757.28x = 14,931,145.33
5. Step 5: Solve for x
   x = 14,931,145.33/3,757.28
6. Step 6: Final answer
   x = 3,973.93