Finding the Fourth Proportional to 1,633.86, 2,253.96 and 961.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,633.86 : 2,253.96 = 961.42 : x
2. Step 2: Convert to fraction form
   1,633.86/2,253.96 = 961.42/x
3. Step 3: Cross multiply
   1,633.86x = 2,253.96 × 961.42
4. Step 4: Simplify right side
   1,633.86x = 2,167,002.22
5. Step 5: Solve for x
   x = 2,167,002.22/1,633.86
6. Step 6: Final answer
   x = 1,326.31