Finding the Fourth Proportional to 2,528.72, 3,489.76 and 1,480.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.72 : 3,489.76 = 1,480.80 : x
2. Step 2: Convert to fraction form
   2,528.72/3,489.76 = 1,480.80/x
3. Step 3: Cross multiply
   2,528.72x = 3,489.76 × 1,480.80
4. Step 4: Simplify right side
   2,528.72x = 5,167,636.61
5. Step 5: Solve for x
   x = 5,167,636.61/2,528.72
6. Step 6: Final answer
   x = 2,043.58