Finding the Fourth Proportional to 2,340.50, 3,229.89 and 1,292.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.50 : 3,229.89 = 1,292.72 : x
2. Step 2: Convert to fraction form
   2,340.50/3,229.89 = 1,292.72/x
3. Step 3: Cross multiply
   2,340.50x = 3,229.89 × 1,292.72
4. Step 4: Simplify right side
   2,340.50x = 4,175,343.40
5. Step 5: Solve for x
   x = 4,175,343.40/2,340.50
6. Step 6: Final answer
   x = 1,783.95