Finding the Fourth Proportional to 2,447.52, 3,667.34 and 1,275.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.52 : 3,667.34 = 1,275.78 : x
2. Step 2: Convert to fraction form
   2,447.52/3,667.34 = 1,275.78/x
3. Step 3: Cross multiply
   2,447.52x = 3,667.34 × 1,275.78
4. Step 4: Simplify right side
   2,447.52x = 4,678,735.97
5. Step 5: Solve for x
   x = 4,678,735.97/2,447.52
6. Step 6: Final answer
   x = 1,911.63