Finding the Fourth Proportional to 1,656.48, 2,485.02 and 682.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.48 : 2,485.02 = 682.05 : x
2. Step 2: Convert to fraction form
   1,656.48/2,485.02 = 682.05/x
3. Step 3: Cross multiply
   1,656.48x = 2,485.02 × 682.05
4. Step 4: Simplify right side
   1,656.48x = 1,694,907.89
5. Step 5: Solve for x
   x = 1,694,907.89/1,656.48
6. Step 6: Final answer
   x = 1,023.20