Finding the Fourth Proportional to 1,146.06, 1,581.21 and 773.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.06 : 1,581.21 = 773.46 : x
2. Step 2: Convert to fraction form
   1,146.06/1,581.21 = 773.46/x
3. Step 3: Cross multiply
   1,146.06x = 1,581.21 × 773.46
4. Step 4: Simplify right side
   1,146.06x = 1,223,002.69
5. Step 5: Solve for x
   x = 1,223,002.69/1,146.06
6. Step 6: Final answer
   x = 1,067.14