Finding the Fourth Proportional to 1,617.72, 2,425.34 and 1,068.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.72 : 2,425.34 = 1,068.54 : x
2. Step 2: Convert to fraction form
   1,617.72/2,425.34 = 1,068.54/x
3. Step 3: Cross multiply
   1,617.72x = 2,425.34 × 1,068.54
4. Step 4: Simplify right side
   1,617.72x = 2,591,572.80
5. Step 5: Solve for x
   x = 2,591,572.80/1,617.72
6. Step 6: Final answer
   x = 1,601.99