Finding the Fourth Proportional to 3,710.15, 5,119.81 and 2,031.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.15 : 5,119.81 = 2,031.23 : x
2. Step 2: Convert to fraction form
   3,710.15/5,119.81 = 2,031.23/x
3. Step 3: Cross multiply
   3,710.15x = 5,119.81 × 2,031.23
4. Step 4: Simplify right side
   3,710.15x = 10,399,501.51
5. Step 5: Solve for x
   x = 10,399,501.51/3,710.15
6. Step 6: Final answer
   x = 2,802.99