Finding the Fourth Proportional to 2,754.71, 4,131.52 and 806.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,754.71 : 4,131.52 = 806.39 : x
2. Step 2: Convert to fraction form
   2,754.71/4,131.52 = 806.39/x
3. Step 3: Cross multiply
   2,754.71x = 4,131.52 × 806.39
4. Step 4: Simplify right side
   2,754.71x = 3,331,616.41
5. Step 5: Solve for x
   x = 3,331,616.41/2,754.71
6. Step 6: Final answer
   x = 1,209.43