Finding the Fourth Proportional to 3,997.96, 5,513.61 and 2,506.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.96 : 5,513.61 = 2,506.04 : x
2. Step 2: Convert to fraction form
   3,997.96/5,513.61 = 2,506.04/x
3. Step 3: Cross multiply
   3,997.96x = 5,513.61 × 2,506.04
4. Step 4: Simplify right side
   3,997.96x = 13,817,327.20
5. Step 5: Solve for x
   x = 13,817,327.20/3,997.96
6. Step 6: Final answer
   x = 3,456.09