Finding the Fourth Proportional to 1,882.72, 2,824.48 and 712.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,882.72 : 2,824.48 = 712.72 : x
2. Step 2: Convert to fraction form
   1,882.72/2,824.48 = 712.72/x
3. Step 3: Cross multiply
   1,882.72x = 2,824.48 × 712.72
4. Step 4: Simplify right side
   1,882.72x = 2,013,063.39
5. Step 5: Solve for x
   x = 2,013,063.39/1,882.72
6. Step 6: Final answer
   x = 1,069.23