Finding the Fourth Proportional to 2,162.16, 3,243.56 and 1,066.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.16 : 3,243.56 = 1,066.56 : x
2. Step 2: Convert to fraction form
   2,162.16/3,243.56 = 1,066.56/x
3. Step 3: Cross multiply
   2,162.16x = 3,243.56 × 1,066.56
4. Step 4: Simplify right side
   2,162.16x = 3,459,451.35
5. Step 5: Solve for x
   x = 3,459,451.35/2,162.16
6. Step 6: Final answer
   x = 1,600.00