Finding the Fourth Proportional to 3,678.84, 5,520.69 and 3,084.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678.84 : 5,520.69 = 3,084.71 : x
2. Step 2: Convert to fraction form
   3,678.84/5,520.69 = 3,084.71/x
3. Step 3: Cross multiply
   3,678.84x = 5,520.69 × 3,084.71
4. Step 4: Simplify right side
   3,678.84x = 17,029,700.05
5. Step 5: Solve for x
   x = 17,029,700.05/3,678.84
6. Step 6: Final answer
   x = 4,629.10