Finding the Fourth Proportional to 2,320.14, 3,201.81 and 1,272.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.14 : 3,201.81 = 1,272.30 : x
2. Step 2: Convert to fraction form
   2,320.14/3,201.81 = 1,272.30/x
3. Step 3: Cross multiply
   2,320.14x = 3,201.81 × 1,272.30
4. Step 4: Simplify right side
   2,320.14x = 4,073,662.86
5. Step 5: Solve for x
   x = 4,073,662.86/2,320.14
6. Step 6: Final answer
   x = 1,755.78