Finding the Fourth Proportional to 6,400.50, 8,832.72 and 3,606

Step by Step Solution

1. Step 1: Write the proportion equation
   6,400.50 : 8,832.72 = 3,606 : x
2. Step 2: Convert to fraction form
   6,400.50/8,832.72 = 3,606/x
3. Step 3: Cross multiply
   6,400.50x = 8,832.72 × 3,606
4. Step 4: Simplify right side
   6,400.50x = 31,850,788.32
5. Step 5: Solve for x
   x = 31,850,788.32/6,400.50
6. Step 6: Final answer
   x = 4,976.30