Finding the Fourth Proportional to 3,111.26, 4,656.78 and 2,289.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.26 : 4,656.78 = 2,289.32 : x
2. Step 2: Convert to fraction form
   3,111.26/4,656.78 = 2,289.32/x
3. Step 3: Cross multiply
   3,111.26x = 4,656.78 × 2,289.32
4. Step 4: Simplify right side
   3,111.26x = 10,660,859.59
5. Step 5: Solve for x
   x = 10,660,859.59/3,111.26
6. Step 6: Final answer
   x = 3,426.54