Finding the Fourth Proportional to 2,619.49, 3,926.83 and 2,391.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.49 : 3,926.83 = 2,391.22 : x
2. Step 2: Convert to fraction form
   2,619.49/3,926.83 = 2,391.22/x
3. Step 3: Cross multiply
   2,619.49x = 3,926.83 × 2,391.22
4. Step 4: Simplify right side
   2,619.49x = 9,389,894.80
5. Step 5: Solve for x
   x = 9,389,894.80/2,619.49
6. Step 6: Final answer
   x = 3,584.63