Finding the Fourth Proportional to 3,111.87, 4,667.82 and 1,163.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.87 : 4,667.82 = 1,163.64 : x
2. Step 2: Convert to fraction form
   3,111.87/4,667.82 = 1,163.64/x
3. Step 3: Cross multiply
   3,111.87x = 4,667.82 × 1,163.64
4. Step 4: Simplify right side
   3,111.87x = 5,431,662.06
5. Step 5: Solve for x
   x = 5,431,662.06/3,111.87
6. Step 6: Final answer
   x = 1,745.47