Finding the Fourth Proportional to 1,404.38, 2,106.59 and 711.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.38 : 2,106.59 = 711.37 : x
2. Step 2: Convert to fraction form
   1,404.38/2,106.59 = 711.37/x
3. Step 3: Cross multiply
   1,404.38x = 2,106.59 × 711.37
4. Step 4: Simplify right side
   1,404.38x = 1,498,564.93
5. Step 5: Solve for x
   x = 1,498,564.93/1,404.38
6. Step 6: Final answer
   x = 1,067.07