Finding the Fourth Proportional to 1,616.89, 2,426.55 and 1,068.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.89 : 2,426.55 = 1,068.88 : x
2. Step 2: Convert to fraction form
   1,616.89/2,426.55 = 1,068.88/x
3. Step 3: Cross multiply
   1,616.89x = 2,426.55 × 1,068.88
4. Step 4: Simplify right side
   1,616.89x = 2,593,690.76
5. Step 5: Solve for x
   x = 2,593,690.76/1,616.89
6. Step 6: Final answer
   x = 1,604.12