Finding the Fourth Proportional to 2,321.34, 3,203.23 and 1,313.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.34 : 3,203.23 = 1,313.10 : x
2. Step 2: Convert to fraction form
   2,321.34/3,203.23 = 1,313.10/x
3. Step 3: Cross multiply
   2,321.34x = 3,203.23 × 1,313.10
4. Step 4: Simplify right side
   2,321.34x = 4,206,150.23
5. Step 5: Solve for x
   x = 4,206,150.23/2,321.34
6. Step 6: Final answer
   x = 1,811.95