Finding the Fourth Proportional to 2,455.72, 3,389.24 and 1,617.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455.72 : 3,389.24 = 1,617.67 : x
2. Step 2: Convert to fraction form
   2,455.72/3,389.24 = 1,617.67/x
3. Step 3: Cross multiply
   2,455.72x = 3,389.24 × 1,617.67
4. Step 4: Simplify right side
   2,455.72x = 5,482,680.15
5. Step 5: Solve for x
   x = 5,482,680.15/2,455.72
6. Step 6: Final answer
   x = 2,232.62