Finding the Fourth Proportional to 3,698.64, 5,100.84 and 2,648.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.64 : 5,100.84 = 2,648.88 : x
2. Step 2: Convert to fraction form
   3,698.64/5,100.84 = 2,648.88/x
3. Step 3: Cross multiply
   3,698.64x = 5,100.84 × 2,648.88
4. Step 4: Simplify right side
   3,698.64x = 13,511,513.06
5. Step 5: Solve for x
   x = 13,511,513.06/3,698.64
6. Step 6: Final answer
   x = 3,653.10