Finding the Fourth Proportional to 3,426.04, 5,139.01 and 1,964.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.04 : 5,139.01 = 1,964.15 : x
2. Step 2: Convert to fraction form
   3,426.04/5,139.01 = 1,964.15/x
3. Step 3: Cross multiply
   3,426.04x = 5,139.01 × 1,964.15
4. Step 4: Simplify right side
   3,426.04x = 10,093,750.98
5. Step 5: Solve for x
   x = 10,093,750.98/3,426.04
6. Step 6: Final answer
   x = 2,946.19