Finding the Fourth Proportional to 2,303.28, 3,178.37 and 1,308.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.28 : 3,178.37 = 1,308.54 : x
2. Step 2: Convert to fraction form
   2,303.28/3,178.37 = 1,308.54/x
3. Step 3: Cross multiply
   2,303.28x = 3,178.37 × 1,308.54
4. Step 4: Simplify right side
   2,303.28x = 4,159,021.59
5. Step 5: Solve for x
   x = 4,159,021.59/2,303.28
6. Step 6: Final answer
   x = 1,805.70