Finding the Fourth Proportional to 2,380.59, 3,283.88 and 1,680.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.59 : 3,283.88 = 1,680.75 : x
2. Step 2: Convert to fraction form
   2,380.59/3,283.88 = 1,680.75/x
3. Step 3: Cross multiply
   2,380.59x = 3,283.88 × 1,680.75
4. Step 4: Simplify right side
   2,380.59x = 5,519,372.91
5. Step 5: Solve for x
   x = 5,519,372.91/2,380.59
6. Step 6: Final answer
   x = 2,318.49