Finding the Fourth Proportional to 6,470.82, 9,706.70 and 2,091.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,470.82 : 9,706.70 = 2,091.42 : x
2. Step 2: Convert to fraction form
   6,470.82/9,706.70 = 2,091.42/x
3. Step 3: Cross multiply
   6,470.82x = 9,706.70 × 2,091.42
4. Step 4: Simplify right side
   6,470.82x = 20,300,791.74
5. Step 5: Solve for x
   x = 20,300,791.74/6,470.82
6. Step 6: Final answer
   x = 3,137.28