Finding the Fourth Proportional to 1,443.79, 2,162.31 and 711.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.79 : 2,162.31 = 711.01 : x
2. Step 2: Convert to fraction form
   1,443.79/2,162.31 = 711.01/x
3. Step 3: Cross multiply
   1,443.79x = 2,162.31 × 711.01
4. Step 4: Simplify right side
   1,443.79x = 1,537,424.03
5. Step 5: Solve for x
   x = 1,537,424.03/1,443.79
6. Step 6: Final answer
   x = 1,064.85