Finding the Fourth Proportional to 1,601.39, 2,403.01 and 676.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.39 : 2,403.01 = 676.89 : x
2. Step 2: Convert to fraction form
   1,601.39/2,403.01 = 676.89/x
3. Step 3: Cross multiply
   1,601.39x = 2,403.01 × 676.89
4. Step 4: Simplify right side
   1,601.39x = 1,626,559.73
5. Step 5: Solve for x
   x = 1,626,559.73/1,601.39
6. Step 6: Final answer
   x = 1,015.72