Finding the Fourth Proportional to 3,687.57, 5,088.96 and 2,009.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687.57 : 5,088.96 = 2,009.07 : x
2. Step 2: Convert to fraction form
   3,687.57/5,088.96 = 2,009.07/x
3. Step 3: Cross multiply
   3,687.57x = 5,088.96 × 2,009.07
4. Step 4: Simplify right side
   3,687.57x = 10,224,076.87
5. Step 5: Solve for x
   x = 10,224,076.87/3,687.57
6. Step 6: Final answer
   x = 2,772.58