Finding the Fourth Proportional to 2,363.69, 3,261.84 and 1,315.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.69 : 3,261.84 = 1,315.69 : x
2. Step 2: Convert to fraction form
   2,363.69/3,261.84 = 1,315.69/x
3. Step 3: Cross multiply
   2,363.69x = 3,261.84 × 1,315.69
4. Step 4: Simplify right side
   2,363.69x = 4,291,557.18
5. Step 5: Solve for x
   x = 4,291,557.18/2,363.69
6. Step 6: Final answer
   x = 1,815.62