Finding the Fourth Proportional to 3,380.61, 4,667.31 and 2,205.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.61 : 4,667.31 = 2,205.03 : x
2. Step 2: Convert to fraction form
   3,380.61/4,667.31 = 2,205.03/x
3. Step 3: Cross multiply
   3,380.61x = 4,667.31 × 2,205.03
4. Step 4: Simplify right side
   3,380.61x = 10,291,558.57
5. Step 5: Solve for x
   x = 10,291,558.57/3,380.61
6. Step 6: Final answer
   x = 3,044.29