Finding the Fourth Proportional to 3,997.69, 5,998.69 and 1,945.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.69 : 5,998.69 = 1,945.69 : x
2. Step 2: Convert to fraction form
   3,997.69/5,998.69 = 1,945.69/x
3. Step 3: Cross multiply
   3,997.69x = 5,998.69 × 1,945.69
4. Step 4: Simplify right side
   3,997.69x = 11,671,578.58
5. Step 5: Solve for x
   x = 11,671,578.58/3,997.69
6. Step 6: Final answer
   x = 2,919.58