Finding the Fourth Proportional to 1,013.69, 1,399.28 and 792.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.69 : 1,399.28 = 792.71 : x
2. Step 2: Convert to fraction form
   1,013.69/1,399.28 = 792.71/x
3. Step 3: Cross multiply
   1,013.69x = 1,399.28 × 792.71
4. Step 4: Simplify right side
   1,013.69x = 1,109,212.29
5. Step 5: Solve for x
   x = 1,109,212.29/1,013.69
6. Step 6: Final answer
   x = 1,094.24