Finding the Fourth Proportional to 3,728.72, 5,565.94 and 3,458.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.72 : 5,565.94 = 3,458.48 : x
2. Step 2: Convert to fraction form
   3,728.72/5,565.94 = 3,458.48/x
3. Step 3: Cross multiply
   3,728.72x = 5,565.94 × 3,458.48
4. Step 4: Simplify right side
   3,728.72x = 19,249,692.17
5. Step 5: Solve for x
   x = 19,249,692.17/3,728.72
6. Step 6: Final answer
   x = 5,162.55