Finding the Fourth Proportional to 2,638.58, 3,956.24 and 1,250.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.58 : 3,956.24 = 1,250.03 : x
2. Step 2: Convert to fraction form
   2,638.58/3,956.24 = 1,250.03/x
3. Step 3: Cross multiply
   2,638.58x = 3,956.24 × 1,250.03
4. Step 4: Simplify right side
   2,638.58x = 4,945,431.70
5. Step 5: Solve for x
   x = 4,945,431.70/2,638.58
6. Step 6: Final answer
   x = 1,874.28