Finding the Fourth Proportional to 2,452.02, 3,383.73 and 1,389.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.02 : 3,383.73 = 1,389.71 : x
2. Step 2: Convert to fraction form
   2,452.02/3,383.73 = 1,389.71/x
3. Step 3: Cross multiply
   2,452.02x = 3,383.73 × 1,389.71
4. Step 4: Simplify right side
   2,452.02x = 4,702,386.50
5. Step 5: Solve for x
   x = 4,702,386.50/2,452.02
6. Step 6: Final answer
   x = 1,917.76