Finding the Fourth Proportional to 2,499.20, 3,748.94 and 1,265.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.20 : 3,748.94 = 1,265.20 : x
2. Step 2: Convert to fraction form
   2,499.20/3,748.94 = 1,265.20/x
3. Step 3: Cross multiply
   2,499.20x = 3,748.94 × 1,265.20
4. Step 4: Simplify right side
   2,499.20x = 4,743,158.89
5. Step 5: Solve for x
   x = 4,743,158.89/2,499.20
6. Step 6: Final answer
   x = 1,897.87