Finding the Fourth Proportional to 2,490.56, 3,735.48 and 758.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.56 : 3,735.48 = 758.72 : x
2. Step 2: Convert to fraction form
   2,490.56/3,735.48 = 758.72/x
3. Step 3: Cross multiply
   2,490.56x = 3,735.48 × 758.72
4. Step 4: Simplify right side
   2,490.56x = 2,834,183.39
5. Step 5: Solve for x
   x = 2,834,183.39/2,490.56
6. Step 6: Final answer
   x = 1,137.97