Finding the Fourth Proportional to 1,601.91, 2,400.84 and 677.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.91 : 2,400.84 = 677.25 : x
2. Step 2: Convert to fraction form
   1,601.91/2,400.84 = 677.25/x
3. Step 3: Cross multiply
   1,601.91x = 2,400.84 × 677.25
4. Step 4: Simplify right side
   1,601.91x = 1,625,968.89
5. Step 5: Solve for x
   x = 1,625,968.89/1,601.91
6. Step 6: Final answer
   x = 1,015.02