Finding the Fourth Proportional to 2,685.82, 3,721.35 and 2,627.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.82 : 3,721.35 = 2,627.50 : x
2. Step 2: Convert to fraction form
   2,685.82/3,721.35 = 2,627.50/x
3. Step 3: Cross multiply
   2,685.82x = 3,721.35 × 2,627.50
4. Step 4: Simplify right side
   2,685.82x = 9,777,847.13
5. Step 5: Solve for x
   x = 9,777,847.13/2,685.82
6. Step 6: Final answer
   x = 3,640.54