Finding the Fourth Proportional to 2,610.92, 3,916.38 and 1,995.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.92 : 3,916.38 = 1,995.72 : x
2. Step 2: Convert to fraction form
   2,610.92/3,916.38 = 1,995.72/x
3. Step 3: Cross multiply
   2,610.92x = 3,916.38 × 1,995.72
4. Step 4: Simplify right side
   2,610.92x = 7,815,997.89
5. Step 5: Solve for x
   x = 7,815,997.89/2,610.92
6. Step 6: Final answer
   x = 2,993.59