Finding the Fourth Proportional to 8,621.06, 12,929.94 and 2,379.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,621.06 : 12,929.94 = 2,379.52 : x
2. Step 2: Convert to fraction form
   8,621.06/12,929.94 = 2,379.52/x
3. Step 3: Cross multiply
   8,621.06x = 12,929.94 × 2,379.52
4. Step 4: Simplify right side
   8,621.06x = 30,767,050.83
5. Step 5: Solve for x
   x = 30,767,050.83/8,621.06
6. Step 6: Final answer
   x = 3,568.82