Finding the Fourth Proportional to 3,500.47, 5,245.31 and 2,618.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,500.47 : 5,245.31 = 2,618.83 : x
2. Step 2: Convert to fraction form
   3,500.47/5,245.31 = 2,618.83/x
3. Step 3: Cross multiply
   3,500.47x = 5,245.31 × 2,618.83
4. Step 4: Simplify right side
   3,500.47x = 13,736,573.56
5. Step 5: Solve for x
   x = 13,736,573.56/3,500.47
6. Step 6: Final answer
   x = 3,924.21