Finding the Fourth Proportional to 7,131.92, 10,698.42 and 1,937.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.92 : 10,698.42 = 1,937.72 : x
2. Step 2: Convert to fraction form
   7,131.92/10,698.42 = 1,937.72/x
3. Step 3: Cross multiply
   7,131.92x = 10,698.42 × 1,937.72
4. Step 4: Simplify right side
   7,131.92x = 20,730,542.40
5. Step 5: Solve for x
   x = 20,730,542.40/7,131.92
6. Step 6: Final answer
   x = 2,906.73