Finding the Fourth Proportional to 1,712.27, 2,362.92 and 926.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,712.27 : 2,362.92 = 926.31 : x
2. Step 2: Convert to fraction form
   1,712.27/2,362.92 = 926.31/x
3. Step 3: Cross multiply
   1,712.27x = 2,362.92 × 926.31
4. Step 4: Simplify right side
   1,712.27x = 2,188,804.33
5. Step 5: Solve for x
   x = 2,188,804.33/1,712.27
6. Step 6: Final answer
   x = 1,278.31