Finding the Fourth Proportional to 3,839.56, 5,759.28 and 2,191.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.56 : 5,759.28 = 2,191.96 : x
2. Step 2: Convert to fraction form
   3,839.56/5,759.28 = 2,191.96/x
3. Step 3: Cross multiply
   3,839.56x = 5,759.28 × 2,191.96
4. Step 4: Simplify right side
   3,839.56x = 12,624,111.39
5. Step 5: Solve for x
   x = 12,624,111.39/3,839.56
6. Step 6: Final answer
   x = 3,287.91