Finding the Fourth Proportional to 3,688.52, 5,090.18 and 2,009.97

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688.52 : 5,090.18 = 2,009.97 : x
2. Step 2: Convert to fraction form
   3,688.52/5,090.18 = 2,009.97/x
3. Step 3: Cross multiply
   3,688.52x = 5,090.18 × 2,009.97
4. Step 4: Simplify right side
   3,688.52x = 10,231,114.12
5. Step 5: Solve for x
   x = 10,231,114.12/3,688.52
6. Step 6: Final answer
   x = 2,773.77