Finding the Fourth Proportional to 2,162.56, 3,241.68 and 1,065.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.56 : 3,241.68 = 1,065.28 : x
2. Step 2: Convert to fraction form
   2,162.56/3,241.68 = 1,065.28/x
3. Step 3: Cross multiply
   2,162.56x = 3,241.68 × 1,065.28
4. Step 4: Simplify right side
   2,162.56x = 3,453,296.87
5. Step 5: Solve for x
   x = 3,453,296.87/2,162.56
6. Step 6: Final answer
   x = 1,596.86