Finding the Fourth Proportional to 3,888.72, 5,827.32 and 3,200.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,888.72 : 5,827.32 = 3,200.22 : x
2. Step 2: Convert to fraction form
   3,888.72/5,827.32 = 3,200.22/x
3. Step 3: Cross multiply
   3,888.72x = 5,827.32 × 3,200.22
4. Step 4: Simplify right side
   3,888.72x = 18,648,706.01
5. Step 5: Solve for x
   x = 18,648,706.01/3,888.72
6. Step 6: Final answer
   x = 4,795.59