Finding the Fourth Proportional to 6,339.86, 9,510.70 and 1,957.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,339.86 : 9,510.70 = 1,957.69 : x
2. Step 2: Convert to fraction form
   6,339.86/9,510.70 = 1,957.69/x
3. Step 3: Cross multiply
   6,339.86x = 9,510.70 × 1,957.69
4. Step 4: Simplify right side
   6,339.86x = 18,619,002.28
5. Step 5: Solve for x
   x = 18,619,002.28/6,339.86
6. Step 6: Final answer
   x = 2,936.82