Finding the Fourth Proportional to 2,063.28, 2,847.24 and 1,131.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.28 : 2,847.24 = 1,131.72 : x
2. Step 2: Convert to fraction form
   2,063.28/2,847.24 = 1,131.72/x
3. Step 3: Cross multiply
   2,063.28x = 2,847.24 × 1,131.72
4. Step 4: Simplify right side
   2,063.28x = 3,222,278.45
5. Step 5: Solve for x
   x = 3,222,278.45/2,063.28
6. Step 6: Final answer
   x = 1,561.73