Finding the Fourth Proportional to 3,997.82, 5,516.90 and 2,506.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.82 : 5,516.90 = 2,506.55 : x
2. Step 2: Convert to fraction form
   3,997.82/5,516.90 = 2,506.55/x
3. Step 3: Cross multiply
   3,997.82x = 5,516.90 × 2,506.55
4. Step 4: Simplify right side
   3,997.82x = 13,828,345.58
5. Step 5: Solve for x
   x = 13,828,345.58/3,997.82
6. Step 6: Final answer
   x = 3,458.98