Finding the Fourth Proportional to 3,290.15, 4,930.61 and 2,467.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,290.15 : 4,930.61 = 2,467.50 : x
2. Step 2: Convert to fraction form
   3,290.15/4,930.61 = 2,467.50/x
3. Step 3: Cross multiply
   3,290.15x = 4,930.61 × 2,467.50
4. Step 4: Simplify right side
   3,290.15x = 12,166,249.35
5. Step 5: Solve for x
   x = 12,166,249.35/3,290.15
6. Step 6: Final answer
   x = 3,697.78