Finding the Fourth Proportional to 7,003.28, 10,503.72 and 2,619.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.28 : 10,503.72 = 2,619.52 : x
2. Step 2: Convert to fraction form
   7,003.28/10,503.72 = 2,619.52/x
3. Step 3: Cross multiply
   7,003.28x = 10,503.72 × 2,619.52
4. Step 4: Simplify right side
   7,003.28x = 27,514,704.61
5. Step 5: Solve for x
   x = 27,514,704.61/7,003.28
6. Step 6: Final answer
   x = 3,928.83