Finding the Fourth Proportional to 2,056.56, 3,085.25 and 669.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.56 : 3,085.25 = 669.52 : x
2. Step 2: Convert to fraction form
   2,056.56/3,085.25 = 669.52/x
3. Step 3: Cross multiply
   2,056.56x = 3,085.25 × 669.52
4. Step 4: Simplify right side
   2,056.56x = 2,065,645.97
5. Step 5: Solve for x
   x = 2,065,645.97/2,056.56
6. Step 6: Final answer
   x = 1,004.42