Finding the Fourth Proportional to 2,162.18, 3,244.16 and 1,066.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.18 : 3,244.16 = 1,066.55 : x
2. Step 2: Convert to fraction form
   2,162.18/3,244.16 = 1,066.55/x
3. Step 3: Cross multiply
   2,162.18x = 3,244.16 × 1,066.55
4. Step 4: Simplify right side
   2,162.18x = 3,460,069.62
5. Step 5: Solve for x
   x = 3,460,069.62/2,162.18
6. Step 6: Final answer
   x = 1,600.27