Finding the Fourth Proportional to 3,684.52, 5,084.88 and 2,112.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684.52 : 5,084.88 = 2,112.64 : x
2. Step 2: Convert to fraction form
   3,684.52/5,084.88 = 2,112.64/x
3. Step 3: Cross multiply
   3,684.52x = 5,084.88 × 2,112.64
4. Step 4: Simplify right side
   3,684.52x = 10,742,520.88
5. Step 5: Solve for x
   x = 10,742,520.88/3,684.52
6. Step 6: Final answer
   x = 2,915.58