Finding the Fourth Proportional to 2,315.69, 3,195.95 and 1,321.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.69 : 3,195.95 = 1,321.32 : x
2. Step 2: Convert to fraction form
   2,315.69/3,195.95 = 1,321.32/x
3. Step 3: Cross multiply
   2,315.69x = 3,195.95 × 1,321.32
4. Step 4: Simplify right side
   2,315.69x = 4,222,866.05
5. Step 5: Solve for x
   x = 4,222,866.05/2,315.69
6. Step 6: Final answer
   x = 1,823.59