Finding the Fourth Proportional to 6,871.68, 10,307.90 and 1,941.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,871.68 : 10,307.90 = 1,941.72 : x
2. Step 2: Convert to fraction form
   6,871.68/10,307.90 = 1,941.72/x
3. Step 3: Cross multiply
   6,871.68x = 10,307.90 × 1,941.72
4. Step 4: Simplify right side
   6,871.68x = 20,015,055.59
5. Step 5: Solve for x
   x = 20,015,055.59/6,871.68
6. Step 6: Final answer
   x = 2,912.69