Finding the Fourth Proportional to 3,688.27, 5,089.93 and 2,009.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688.27 : 5,089.93 = 2,009.72 : x
2. Step 2: Convert to fraction form
   3,688.27/5,089.93 = 2,009.72/x
3. Step 3: Cross multiply
   3,688.27x = 5,089.93 × 2,009.72
4. Step 4: Simplify right side
   3,688.27x = 10,229,321.39
5. Step 5: Solve for x
   x = 10,229,321.39/3,688.27
6. Step 6: Final answer
   x = 2,773.48