Finding the Fourth Proportional to 1,141.27, 1,720.39 and 1,066

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.27 : 1,720.39 = 1,066 : x
2. Step 2: Convert to fraction form
   1,141.27/1,720.39 = 1,066/x
3. Step 3: Cross multiply
   1,141.27x = 1,720.39 × 1,066
4. Step 4: Simplify right side
   1,141.27x = 1,833,935.74
5. Step 5: Solve for x
   x = 1,833,935.74/1,141.27
6. Step 6: Final answer
   x = 1,606.93