Finding the Fourth Proportional to 1,382.36, 1,907.31 and 963.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.36 : 1,907.31 = 963.59 : x
2. Step 2: Convert to fraction form
   1,382.36/1,907.31 = 963.59/x
3. Step 3: Cross multiply
   1,382.36x = 1,907.31 × 963.59
4. Step 4: Simplify right side
   1,382.36x = 1,837,858.92
5. Step 5: Solve for x
   x = 1,837,858.92/1,382.36
6. Step 6: Final answer
   x = 1,329.51