Finding the Fourth Proportional to 1,613.31, 2,416.59 and 963.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.31 : 2,416.59 = 963.69 : x
2. Step 2: Convert to fraction form
   1,613.31/2,416.59 = 963.69/x
3. Step 3: Cross multiply
   1,613.31x = 2,416.59 × 963.69
4. Step 4: Simplify right side
   1,613.31x = 2,328,843.62
5. Step 5: Solve for x
   x = 2,328,843.62/1,613.31
6. Step 6: Final answer
   x = 1,443.52