Finding the Fourth Proportional to 3,839.15, 5,755.35 and 2,275.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.15 : 5,755.35 = 2,275.31 : x
2. Step 2: Convert to fraction form
   3,839.15/5,755.35 = 2,275.31/x
3. Step 3: Cross multiply
   3,839.15x = 5,755.35 × 2,275.31
4. Step 4: Simplify right side
   3,839.15x = 13,095,205.41
5. Step 5: Solve for x
   x = 13,095,205.41/3,839.15
6. Step 6: Final answer
   x = 3,410.96