Finding the Fourth Proportional to 2,951.72, 4,072.72 and 1,709

Step by Step Solution

1. Step 1: Write the proportion equation
   2,951.72 : 4,072.72 = 1,709 : x
2. Step 2: Convert to fraction form
   2,951.72/4,072.72 = 1,709/x
3. Step 3: Cross multiply
   2,951.72x = 4,072.72 × 1,709
4. Step 4: Simplify right side
   2,951.72x = 6,960,278.48
5. Step 5: Solve for x
   x = 6,960,278.48/2,951.72
6. Step 6: Final answer
   x = 2,358.04