Finding the Fourth Proportional to 3,683.52, 5,078.16 and 2,688.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,683.52 : 5,078.16 = 2,688.84 : x
2. Step 2: Convert to fraction form
   3,683.52/5,078.16 = 2,688.84/x
3. Step 3: Cross multiply
   3,683.52x = 5,078.16 × 2,688.84
4. Step 4: Simplify right side
   3,683.52x = 13,654,359.73
5. Step 5: Solve for x
   x = 13,654,359.73/3,683.52
6. Step 6: Final answer
   x = 3,706.88