Finding the Fourth Proportional to 3,381.08, 5,064.89 and 2,647.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,381.08 : 5,064.89 = 2,647.22 : x
2. Step 2: Convert to fraction form
   3,381.08/5,064.89 = 2,647.22/x
3. Step 3: Cross multiply
   3,381.08x = 5,064.89 × 2,647.22
4. Step 4: Simplify right side
   3,381.08x = 13,407,839.55
5. Step 5: Solve for x
   x = 13,407,839.55/3,381.08
6. Step 6: Final answer
   x = 3,965.56