Finding the Fourth Proportional to 5,314.53, 7,967.89 and 2,680.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,314.53 : 7,967.89 = 2,680.74 : x
2. Step 2: Convert to fraction form
   5,314.53/7,967.89 = 2,680.74/x
3. Step 3: Cross multiply
   5,314.53x = 7,967.89 × 2,680.74
4. Step 4: Simplify right side
   5,314.53x = 21,359,834.74
5. Step 5: Solve for x
   x = 21,359,834.74/5,314.53
6. Step 6: Final answer
   x = 4,019.14