Finding the Fourth Proportional to 2,161.27, 3,238.75 and 1,066.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161.27 : 3,238.75 = 1,066.42 : x
2. Step 2: Convert to fraction form
   2,161.27/3,238.75 = 1,066.42/x
3. Step 3: Cross multiply
   2,161.27x = 3,238.75 × 1,066.42
4. Step 4: Simplify right side
   2,161.27x = 3,453,867.78
5. Step 5: Solve for x
   x = 3,453,867.78/2,161.27
6. Step 6: Final answer
   x = 1,598.07