Finding the Fourth Proportional to 3,096.42, 4,272.98 and 1,680.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,096.42 : 4,272.98 = 1,680.07 : x
2. Step 2: Convert to fraction form
   3,096.42/4,272.98 = 1,680.07/x
3. Step 3: Cross multiply
   3,096.42x = 4,272.98 × 1,680.07
4. Step 4: Simplify right side
   3,096.42x = 7,178,899.03
5. Step 5: Solve for x
   x = 7,178,899.03/3,096.42
6. Step 6: Final answer
   x = 2,318.45