Finding the Fourth Proportional to 1,412.27, 2,119.71 and 719.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.27 : 2,119.71 = 719.44 : x
2. Step 2: Convert to fraction form
   1,412.27/2,119.71 = 719.44/x
3. Step 3: Cross multiply
   1,412.27x = 2,119.71 × 719.44
4. Step 4: Simplify right side
   1,412.27x = 1,525,001.56
5. Step 5: Solve for x
   x = 1,525,001.56/1,412.27
6. Step 6: Final answer
   x = 1,079.82