Finding the Fourth Proportional to 2,068.24, 3,099.36 and 1,091.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.24 : 3,099.36 = 1,091.38 : x
2. Step 2: Convert to fraction form
   2,068.24/3,099.36 = 1,091.38/x
3. Step 3: Cross multiply
   2,068.24x = 3,099.36 × 1,091.38
4. Step 4: Simplify right side
   2,068.24x = 3,382,579.52
5. Step 5: Solve for x
   x = 3,382,579.52/2,068.24
6. Step 6: Final answer
   x = 1,635.49