Finding the Fourth Proportional to 1,968.76, 2,716.82 and 1,072.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.76 : 2,716.82 = 1,072.46 : x
2. Step 2: Convert to fraction form
   1,968.76/2,716.82 = 1,072.46/x
3. Step 3: Cross multiply
   1,968.76x = 2,716.82 × 1,072.46
4. Step 4: Simplify right side
   1,968.76x = 2,913,680.78
5. Step 5: Solve for x
   x = 2,913,680.78/1,968.76
6. Step 6: Final answer
   x = 1,479.96