Finding the Fourth Proportional to 6,470.33, 9,705.69 and 2,087.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,470.33 : 9,705.69 = 2,087.82 : x
2. Step 2: Convert to fraction form
   6,470.33/9,705.69 = 2,087.82/x
3. Step 3: Cross multiply
   6,470.33x = 9,705.69 × 2,087.82
4. Step 4: Simplify right side
   6,470.33x = 20,263,733.70
5. Step 5: Solve for x
   x = 20,263,733.70/6,470.33
6. Step 6: Final answer
   x = 3,131.80