Finding the Fourth Proportional to 3,997.60, 5,995.72 and 1,805.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.60 : 5,995.72 = 1,805.82 : x
2. Step 2: Convert to fraction form
   3,997.60/5,995.72 = 1,805.82/x
3. Step 3: Cross multiply
   3,997.60x = 5,995.72 × 1,805.82
4. Step 4: Simplify right side
   3,997.60x = 10,827,191.09
5. Step 5: Solve for x
   x = 10,827,191.09/3,997.60
6. Step 6: Final answer
   x = 2,708.42