Finding the Fourth Proportional to 2,636.10, 3,956.10 and 1,249.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.10 : 3,956.10 = 1,249.43 : x
2. Step 2: Convert to fraction form
   2,636.10/3,956.10 = 1,249.43/x
3. Step 3: Cross multiply
   2,636.10x = 3,956.10 × 1,249.43
4. Step 4: Simplify right side
   2,636.10x = 4,942,863.78
5. Step 5: Solve for x
   x = 4,942,863.78/2,636.10
6. Step 6: Final answer
   x = 1,875.07