Finding the Fourth Proportional to 3,648.54, 5,472.78 and 1,051.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.54 : 5,472.78 = 1,051.48 : x
2. Step 2: Convert to fraction form
   3,648.54/5,472.78 = 1,051.48/x
3. Step 3: Cross multiply
   3,648.54x = 5,472.78 × 1,051.48
4. Step 4: Simplify right side
   3,648.54x = 5,754,518.71
5. Step 5: Solve for x
   x = 5,754,518.71/3,648.54
6. Step 6: Final answer
   x = 1,577.21