Finding the Fourth Proportional to 5,016.72, 7,522.65 and 1,728.66

Step by Step Solution

1. Step 1: Write the proportion equation
   5,016.72 : 7,522.65 = 1,728.66 : x
2. Step 2: Convert to fraction form
   5,016.72/7,522.65 = 1,728.66/x
3. Step 3: Cross multiply
   5,016.72x = 7,522.65 × 1,728.66
4. Step 4: Simplify right side
   5,016.72x = 13,004,104.15
5. Step 5: Solve for x
   x = 13,004,104.15/5,016.72
6. Step 6: Final answer
   x = 2,592.15