Finding the Fourth Proportional to 1,066.74, 1,472.49 and 805.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.74 : 1,472.49 = 805.38 : x
2. Step 2: Convert to fraction form
   1,066.74/1,472.49 = 805.38/x
3. Step 3: Cross multiply
   1,066.74x = 1,472.49 × 805.38
4. Step 4: Simplify right side
   1,066.74x = 1,185,914.00
5. Step 5: Solve for x
   x = 1,185,914.00/1,066.74
6. Step 6: Final answer
   x = 1,111.72