Finding the Fourth Proportional to 3,426.54, 5,128.29 and 1,963.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.54 : 5,128.29 = 1,963.50 : x
2. Step 2: Convert to fraction form
   3,426.54/5,128.29 = 1,963.50/x
3. Step 3: Cross multiply
   3,426.54x = 5,128.29 × 1,963.50
4. Step 4: Simplify right side
   3,426.54x = 10,069,397.42
5. Step 5: Solve for x
   x = 10,069,397.42/3,426.54
6. Step 6: Final answer
   x = 2,938.65