Finding the Fourth Proportional to 3,389.76, 5,107.22 and 3,061.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,389.76 : 5,107.22 = 3,061.06 : x
2. Step 2: Convert to fraction form
   3,389.76/5,107.22 = 3,061.06/x
3. Step 3: Cross multiply
   3,389.76x = 5,107.22 × 3,061.06
4. Step 4: Simplify right side
   3,389.76x = 15,633,506.85
5. Step 5: Solve for x
   x = 15,633,506.85/3,389.76
6. Step 6: Final answer
   x = 4,611.98