Finding the Fourth Proportional to 3,392.72, 5,089.25 and 1,054.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,392.72 : 5,089.25 = 1,054.32 : x
2. Step 2: Convert to fraction form
   3,392.72/5,089.25 = 1,054.32/x
3. Step 3: Cross multiply
   3,392.72x = 5,089.25 × 1,054.32
4. Step 4: Simplify right side
   3,392.72x = 5,365,698.06
5. Step 5: Solve for x
   x = 5,365,698.06/3,392.72
6. Step 6: Final answer
   x = 1,581.53