Finding the Fourth Proportional to 1,601.55, 2,401.59 and 676.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.55 : 2,401.59 = 676.60 : x
2. Step 2: Convert to fraction form
   1,601.55/2,401.59 = 676.60/x
3. Step 3: Cross multiply
   1,601.55x = 2,401.59 × 676.60
4. Step 4: Simplify right side
   1,601.55x = 1,624,909.79
5. Step 5: Solve for x
   x = 1,624,909.79/1,601.55
6. Step 6: Final answer
   x = 1,014.59