Finding the Fourth Proportional to 4,978.08, 6,872.76 and 3,300.96

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.08 : 6,872.76 = 3,300.96 : x
2. Step 2: Convert to fraction form
   4,978.08/6,872.76 = 3,300.96/x
3. Step 3: Cross multiply
   4,978.08x = 6,872.76 × 3,300.96
4. Step 4: Simplify right side
   4,978.08x = 22,686,705.85
5. Step 5: Solve for x
   x = 22,686,705.85/4,978.08
6. Step 6: Final answer
   x = 4,557.32