Finding the Fourth Proportional to 3,648.72, 5,472.27 and 1,051.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.72 : 5,472.27 = 1,051.86 : x
2. Step 2: Convert to fraction form
   3,648.72/5,472.27 = 1,051.86/x
3. Step 3: Cross multiply
   3,648.72x = 5,472.27 × 1,051.86
4. Step 4: Simplify right side
   3,648.72x = 5,756,061.92
5. Step 5: Solve for x
   x = 5,756,061.92/3,648.72
6. Step 6: Final answer
   x = 1,577.56