Finding the Fourth Proportional to 3,613.46, 5,411.54 and 1,965.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.46 : 5,411.54 = 1,965.92 : x
2. Step 2: Convert to fraction form
   3,613.46/5,411.54 = 1,965.92/x
3. Step 3: Cross multiply
   3,613.46x = 5,411.54 × 1,965.92
4. Step 4: Simplify right side
   3,613.46x = 10,638,654.72
5. Step 5: Solve for x
   x = 10,638,654.72/3,613.46
6. Step 6: Final answer
   x = 2,944.17