Finding the Fourth Proportional to 1,063.68, 1,593.72 and 672.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.68 : 1,593.72 = 672.72 : x
2. Step 2: Convert to fraction form
   1,063.68/1,593.72 = 672.72/x
3. Step 3: Cross multiply
   1,063.68x = 1,593.72 × 672.72
4. Step 4: Simplify right side
   1,063.68x = 1,072,127.32
5. Step 5: Solve for x
   x = 1,072,127.32/1,063.68
6. Step 6: Final answer
   x = 1,007.94