Finding the Fourth Proportional to 5,181.57, 7,768.71 and 2,406.51

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.57 : 7,768.71 = 2,406.51 : x
2. Step 2: Convert to fraction form
   5,181.57/7,768.71 = 2,406.51/x
3. Step 3: Cross multiply
   5,181.57x = 7,768.71 × 2,406.51
4. Step 4: Simplify right side
   5,181.57x = 18,695,478.30
5. Step 5: Solve for x
   x = 18,695,478.30/5,181.57
6. Step 6: Final answer
   x = 3,608.07