Finding the Fourth Proportional to 2,089.20, 3,132.72 and 1,048.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.20 : 3,132.72 = 1,048.08 : x
2. Step 2: Convert to fraction form
   2,089.20/3,132.72 = 1,048.08/x
3. Step 3: Cross multiply
   2,089.20x = 3,132.72 × 1,048.08
4. Step 4: Simplify right side
   2,089.20x = 3,283,341.18
5. Step 5: Solve for x
   x = 3,283,341.18/2,089.20
6. Step 6: Final answer
   x = 1,571.58