Finding the Fourth Proportional to 2,452.07, 3,383.94 and 1,389.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.07 : 3,383.94 = 1,389.83 : x
2. Step 2: Convert to fraction form
   2,452.07/3,383.94 = 1,389.83/x
3. Step 3: Cross multiply
   2,452.07x = 3,383.94 × 1,389.83
4. Step 4: Simplify right side
   2,452.07x = 4,703,089.62
5. Step 5: Solve for x
   x = 4,703,089.62/2,452.07
6. Step 6: Final answer
   x = 1,918.01