Finding the Fourth Proportional to 2,697.82, 3,698.71 and 2,648.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697.82 : 3,698.71 = 2,648.61 : x
2. Step 2: Convert to fraction form
   2,697.82/3,698.71 = 2,648.61/x
3. Step 3: Cross multiply
   2,697.82x = 3,698.71 × 2,648.61
4. Step 4: Simplify right side
   2,697.82x = 9,796,440.29
5. Step 5: Solve for x
   x = 9,796,440.29/2,697.82
6. Step 6: Final answer
   x = 3,631.24