Finding the Fourth Proportional to 2,383.83, 3,289.61 and 1,321.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.83 : 3,289.61 = 1,321.56 : x
2. Step 2: Convert to fraction form
   2,383.83/3,289.61 = 1,321.56/x
3. Step 3: Cross multiply
   2,383.83x = 3,289.61 × 1,321.56
4. Step 4: Simplify right side
   2,383.83x = 4,347,410.38
5. Step 5: Solve for x
   x = 4,347,410.38/2,383.83
6. Step 6: Final answer
   x = 1,823.71