Finding the Fourth Proportional to 1,835.56, 2,751.72 and 680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,835.56 : 2,751.72 = 680.50 : x
2. Step 2: Convert to fraction form
   1,835.56/2,751.72 = 680.50/x
3. Step 3: Cross multiply
   1,835.56x = 2,751.72 × 680.50
4. Step 4: Simplify right side
   1,835.56x = 1,872,545.46
5. Step 5: Solve for x
   x = 1,872,545.46/1,835.56
6. Step 6: Final answer
   x = 1,020.15