Finding the Fourth Proportional to 1,456.89, 2,020.81 and 1,404.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.89 : 2,020.81 = 1,404.36 : x
2. Step 2: Convert to fraction form
   1,456.89/2,020.81 = 1,404.36/x
3. Step 3: Cross multiply
   1,456.89x = 2,020.81 × 1,404.36
4. Step 4: Simplify right side
   1,456.89x = 2,837,938.14
5. Step 5: Solve for x
   x = 2,837,938.14/1,456.89
6. Step 6: Final answer
   x = 1,947.94