Finding the Fourth Proportional to 3,648.72, 5,474.28 and 1,456.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.72 : 5,474.28 = 1,456.86 : x
2. Step 2: Convert to fraction form
   3,648.72/5,474.28 = 1,456.86/x
3. Step 3: Cross multiply
   3,648.72x = 5,474.28 × 1,456.86
4. Step 4: Simplify right side
   3,648.72x = 7,975,259.56
5. Step 5: Solve for x
   x = 7,975,259.56/3,648.72
6. Step 6: Final answer
   x = 2,185.77