Finding the Fourth Proportional to 3,606.86, 4,978.40 and 2,411.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,606.86 : 4,978.40 = 2,411.98 : x
2. Step 2: Convert to fraction form
   3,606.86/4,978.40 = 2,411.98/x
3. Step 3: Cross multiply
   3,606.86x = 4,978.40 × 2,411.98
4. Step 4: Simplify right side
   3,606.86x = 12,007,776.73
5. Step 5: Solve for x
   x = 12,007,776.73/3,606.86
6. Step 6: Final answer
   x = 3,329.15