Finding the Fourth Proportional to 1,404.33, 2,104.29 and 1,057.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.33 : 2,104.29 = 1,057.27 : x
2. Step 2: Convert to fraction form
   1,404.33/2,104.29 = 1,057.27/x
3. Step 3: Cross multiply
   1,404.33x = 2,104.29 × 1,057.27
4. Step 4: Simplify right side
   1,404.33x = 2,224,802.69
5. Step 5: Solve for x
   x = 2,224,802.69/1,404.33
6. Step 6: Final answer
   x = 1,584.24