Finding the Fourth Proportional to 3,508.71, 4,839.89 and 2,091.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,508.71 : 4,839.89 = 2,091.47 : x
2. Step 2: Convert to fraction form
   3,508.71/4,839.89 = 2,091.47/x
3. Step 3: Cross multiply
   3,508.71x = 4,839.89 × 2,091.47
4. Step 4: Simplify right side
   3,508.71x = 10,122,450.08
5. Step 5: Solve for x
   x = 10,122,450.08/3,508.71
6. Step 6: Final answer
   x = 2,884.95