Finding the Fourth Proportional to 2,447.16, 3,667.62 and 1,145.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.16 : 3,667.62 = 1,145.76 : x
2. Step 2: Convert to fraction form
   2,447.16/3,667.62 = 1,145.76/x
3. Step 3: Cross multiply
   2,447.16x = 3,667.62 × 1,145.76
4. Step 4: Simplify right side
   2,447.16x = 4,202,212.29
5. Step 5: Solve for x
   x = 4,202,212.29/2,447.16
6. Step 6: Final answer
   x = 1,717.18