Finding the Fourth Proportional to 4,876.57, 6,732.56 and 3,200.91

Step by Step Solution

1. Step 1: Write the proportion equation
   4,876.57 : 6,732.56 = 3,200.91 : x
2. Step 2: Convert to fraction form
   4,876.57/6,732.56 = 3,200.91/x
3. Step 3: Cross multiply
   4,876.57x = 6,732.56 × 3,200.91
4. Step 4: Simplify right side
   4,876.57x = 21,550,311.32
5. Step 5: Solve for x
   x = 21,550,311.32/4,876.57
6. Step 6: Final answer
   x = 4,419.15