Finding the Fourth Proportional to 3,747.36, 5,612.69 and 2,648.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,747.36 : 5,612.69 = 2,648.40 : x
2. Step 2: Convert to fraction form
   3,747.36/5,612.69 = 2,648.40/x
3. Step 3: Cross multiply
   3,747.36x = 5,612.69 × 2,648.40
4. Step 4: Simplify right side
   3,747.36x = 14,864,633.77
5. Step 5: Solve for x
   x = 14,864,633.77/3,747.36
6. Step 6: Final answer
   x = 3,966.69