Finding the Fourth Proportional to 2,759.50, 3,815.31 and 2,637.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,759.50 : 3,815.31 = 2,637.10 : x
2. Step 2: Convert to fraction form
   2,759.50/3,815.31 = 2,637.10/x
3. Step 3: Cross multiply
   2,759.50x = 3,815.31 × 2,637.10
4. Step 4: Simplify right side
   2,759.50x = 10,061,354.00
5. Step 5: Solve for x
   x = 10,061,354.00/2,759.50
6. Step 6: Final answer
   x = 3,646.08