Finding the Fourth Proportional to 1,835.31, 2,751.30 and 680.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,835.31 : 2,751.30 = 680.25 : x
2. Step 2: Convert to fraction form
   1,835.31/2,751.30 = 680.25/x
3. Step 3: Cross multiply
   1,835.31x = 2,751.30 × 680.25
4. Step 4: Simplify right side
   1,835.31x = 1,871,571.83
5. Step 5: Solve for x
   x = 1,871,571.83/1,835.31
6. Step 6: Final answer
   x = 1,019.76