Finding the Fourth Proportional to 3,434.02, 5,142.74 and 1,968.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,434.02 : 5,142.74 = 1,968.72 : x
2. Step 2: Convert to fraction form
   3,434.02/5,142.74 = 1,968.72/x
3. Step 3: Cross multiply
   3,434.02x = 5,142.74 × 1,968.72
4. Step 4: Simplify right side
   3,434.02x = 10,124,615.09
5. Step 5: Solve for x
   x = 10,124,615.09/3,434.02
6. Step 6: Final answer
   x = 2,948.33