Finding the Fourth Proportional to 2,363.48, 3,261.55 and 1,315.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.48 : 3,261.55 = 1,315.54 : x
2. Step 2: Convert to fraction form
   2,363.48/3,261.55 = 1,315.54/x
3. Step 3: Cross multiply
   2,363.48x = 3,261.55 × 1,315.54
4. Step 4: Simplify right side
   2,363.48x = 4,290,676.60
5. Step 5: Solve for x
   x = 4,290,676.60/2,363.48
6. Step 6: Final answer
   x = 1,815.41