Finding the Fourth Proportional to 2,363.17, 3,261.23 and 1,315.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.17 : 3,261.23 = 1,315.30 : x
2. Step 2: Convert to fraction form
   2,363.17/3,261.23 = 1,315.30/x
3. Step 3: Cross multiply
   2,363.17x = 3,261.23 × 1,315.30
4. Step 4: Simplify right side
   2,363.17x = 4,289,495.82
5. Step 5: Solve for x
   x = 4,289,495.82/2,363.17
6. Step 6: Final answer
   x = 1,815.14