Finding the Fourth Proportional to 2,009.62, 3,015.56 and 1,085.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.62 : 3,015.56 = 1,085.14 : x
2. Step 2: Convert to fraction form
   2,009.62/3,015.56 = 1,085.14/x
3. Step 3: Cross multiply
   2,009.62x = 3,015.56 × 1,085.14
4. Step 4: Simplify right side
   2,009.62x = 3,272,304.78
5. Step 5: Solve for x
   x = 3,272,304.78/2,009.62
6. Step 6: Final answer
   x = 1,628.32