Finding the Fourth Proportional to 3,997.51, 5,996.78 and 2,146.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.51 : 5,996.78 = 2,146.09 : x
2. Step 2: Convert to fraction form
   3,997.51/5,996.78 = 2,146.09/x
3. Step 3: Cross multiply
   3,997.51x = 5,996.78 × 2,146.09
4. Step 4: Simplify right side
   3,997.51x = 12,869,629.59
5. Step 5: Solve for x
   x = 12,869,629.59/3,997.51
6. Step 6: Final answer
   x = 3,219.41