Finding the Fourth Proportional to 3,606.63, 5,411.57 and 1,960.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,606.63 : 5,411.57 = 1,960.71 : x
2. Step 2: Convert to fraction form
   3,606.63/5,411.57 = 1,960.71/x
3. Step 3: Cross multiply
   3,606.63x = 5,411.57 × 1,960.71
4. Step 4: Simplify right side
   3,606.63x = 10,610,519.41
5. Step 5: Solve for x
   x = 10,610,519.41/3,606.63
6. Step 6: Final answer
   x = 2,941.95