Finding the Fourth Proportional to 2,289.52, 3,157.86 and 1,503.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.52 : 3,157.86 = 1,503.28 : x
2. Step 2: Convert to fraction form
   2,289.52/3,157.86 = 1,503.28/x
3. Step 3: Cross multiply
   2,289.52x = 3,157.86 × 1,503.28
4. Step 4: Simplify right side
   2,289.52x = 4,747,147.78
5. Step 5: Solve for x
   x = 4,747,147.78/2,289.52
6. Step 6: Final answer
   x = 2,073.42