Finding the Fourth Proportional to 8,554.87, 12,830.37 and 2,708.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,554.87 : 12,830.37 = 2,708.29 : x
2. Step 2: Convert to fraction form
   8,554.87/12,830.37 = 2,708.29/x
3. Step 3: Cross multiply
   8,554.87x = 12,830.37 × 2,708.29
4. Step 4: Simplify right side
   8,554.87x = 34,748,362.77
5. Step 5: Solve for x
   x = 34,748,362.77/8,554.87
6. Step 6: Final answer
   x = 4,061.82