Finding the Fourth Proportional to 1,654.54, 2,482.83 and 680.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,654.54 : 2,482.83 = 680.65 : x
2. Step 2: Convert to fraction form
   1,654.54/2,482.83 = 680.65/x
3. Step 3: Cross multiply
   1,654.54x = 2,482.83 × 680.65
4. Step 4: Simplify right side
   1,654.54x = 1,689,932.03
5. Step 5: Solve for x
   x = 1,689,932.03/1,654.54
6. Step 6: Final answer
   x = 1,021.39