Finding the Fourth Proportional to 1,060.27, 1,589.89 and 712.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.27 : 1,589.89 = 712.74 : x
2. Step 2: Convert to fraction form
   1,060.27/1,589.89 = 712.74/x
3. Step 3: Cross multiply
   1,060.27x = 1,589.89 × 712.74
4. Step 4: Simplify right side
   1,060.27x = 1,133,178.20
5. Step 5: Solve for x
   x = 1,133,178.20/1,060.27
6. Step 6: Final answer
   x = 1,068.76