Finding the Fourth Proportional to 2,363.28, 3,261.27 and 1,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.28 : 3,261.27 = 1,315.50 : x
2. Step 2: Convert to fraction form
   2,363.28/3,261.27 = 1,315.50/x
3. Step 3: Cross multiply
   2,363.28x = 3,261.27 × 1,315.50
4. Step 4: Simplify right side
   2,363.28x = 4,290,200.69
5. Step 5: Solve for x
   x = 4,290,200.69/2,363.28
6. Step 6: Final answer
   x = 1,815.36