Finding the Fourth Proportional to 2,496.78, 3,743.28 and 1,263.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,496.78 : 3,743.28 = 1,263.60 : x
2. Step 2: Convert to fraction form
   2,496.78/3,743.28 = 1,263.60/x
3. Step 3: Cross multiply
   2,496.78x = 3,743.28 × 1,263.60
4. Step 4: Simplify right side
   2,496.78x = 4,730,008.61
5. Step 5: Solve for x
   x = 4,730,008.61/2,496.78
6. Step 6: Final answer
   x = 1,894.44