Finding the Fourth Proportional to 3,710.16, 5,120.01 and 2,138.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.16 : 5,120.01 = 2,138.25 : x
2. Step 2: Convert to fraction form
   3,710.16/5,120.01 = 2,138.25/x
3. Step 3: Cross multiply
   3,710.16x = 5,120.01 × 2,138.25
4. Step 4: Simplify right side
   3,710.16x = 10,947,861.38
5. Step 5: Solve for x
   x = 10,947,861.38/3,710.16
6. Step 6: Final answer
   x = 2,950.78