Finding the Fourth Proportional to 1,722.89, 2,377.56 and 936.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.89 : 2,377.56 = 936.92 : x
2. Step 2: Convert to fraction form
   1,722.89/2,377.56 = 936.92/x
3. Step 3: Cross multiply
   1,722.89x = 2,377.56 × 936.92
4. Step 4: Simplify right side
   1,722.89x = 2,227,583.52
5. Step 5: Solve for x
   x = 2,227,583.52/1,722.89
6. Step 6: Final answer
   x = 1,292.93