Finding the Fourth Proportional to 3,651.52, 5,478.20 and 1,054.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.52 : 5,478.20 = 1,054.48 : x
2. Step 2: Convert to fraction form
   3,651.52/5,478.20 = 1,054.48/x
3. Step 3: Cross multiply
   3,651.52x = 5,478.20 × 1,054.48
4. Step 4: Simplify right side
   3,651.52x = 5,776,652.34
5. Step 5: Solve for x
   x = 5,776,652.34/3,651.52
6. Step 6: Final answer
   x = 1,581.99