Finding the Fourth Proportional to 1,036.72, 1,424.27 and 927.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.72 : 1,424.27 = 927.64 : x
2. Step 2: Convert to fraction form
   1,036.72/1,424.27 = 927.64/x
3. Step 3: Cross multiply
   1,036.72x = 1,424.27 × 927.64
4. Step 4: Simplify right side
   1,036.72x = 1,321,209.82
5. Step 5: Solve for x
   x = 1,321,209.82/1,036.72
6. Step 6: Final answer
   x = 1,274.41