Finding the Fourth Proportional to 1,722.37, 2,376.89 and 936.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.37 : 2,376.89 = 936.43 : x
2. Step 2: Convert to fraction form
   1,722.37/2,376.89 = 936.43/x
3. Step 3: Cross multiply
   1,722.37x = 2,376.89 × 936.43
4. Step 4: Simplify right side
   1,722.37x = 2,225,791.10
5. Step 5: Solve for x
   x = 2,225,791.10/1,722.37
6. Step 6: Final answer
   x = 1,292.28