Finding the Fourth Proportional to 3,710.34, 5,120.12 and 2,031.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.34 : 5,120.12 = 2,031.71 : x
2. Step 2: Convert to fraction form
   3,710.34/5,120.12 = 2,031.71/x
3. Step 3: Cross multiply
   3,710.34x = 5,120.12 × 2,031.71
4. Step 4: Simplify right side
   3,710.34x = 10,402,563.25
5. Step 5: Solve for x
   x = 10,402,563.25/3,710.34
6. Step 6: Final answer
   x = 2,803.67