Finding the Fourth Proportional to 2,591.38, 3,578.34 and 2,222.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.38 : 3,578.34 = 2,222.02 : x
2. Step 2: Convert to fraction form
   2,591.38/3,578.34 = 2,222.02/x
3. Step 3: Cross multiply
   2,591.38x = 3,578.34 × 2,222.02
4. Step 4: Simplify right side
   2,591.38x = 7,951,143.05
5. Step 5: Solve for x
   x = 7,951,143.05/2,591.38
6. Step 6: Final answer
   x = 3,068.30