Finding the Fourth Proportional to 3,380.55, 4,664.89 and 1,868.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.55 : 4,664.89 = 1,868.05 : x
2. Step 2: Convert to fraction form
   3,380.55/4,664.89 = 1,868.05/x
3. Step 3: Cross multiply
   3,380.55x = 4,664.89 × 1,868.05
4. Step 4: Simplify right side
   3,380.55x = 8,714,234.94
5. Step 5: Solve for x
   x = 8,714,234.94/3,380.55
6. Step 6: Final answer
   x = 2,577.76