Finding the Fourth Proportional to 5,680.84, 8,520.72 and 1,983.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,680.84 : 8,520.72 = 1,983.10 : x
2. Step 2: Convert to fraction form
   5,680.84/8,520.72 = 1,983.10/x
3. Step 3: Cross multiply
   5,680.84x = 8,520.72 × 1,983.10
4. Step 4: Simplify right side
   5,680.84x = 16,897,439.83
5. Step 5: Solve for x
   x = 16,897,439.83/5,680.84
6. Step 6: Final answer
   x = 2,974.46