Finding the Fourth Proportional to 3,710.04, 5,119.78 and 2,138.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.04 : 5,119.78 = 2,138.04 : x
2. Step 2: Convert to fraction form
   3,710.04/5,119.78 = 2,138.04/x
3. Step 3: Cross multiply
   3,710.04x = 5,119.78 × 2,138.04
4. Step 4: Simplify right side
   3,710.04x = 10,946,294.43
5. Step 5: Solve for x
   x = 10,946,294.43/3,710.04
6. Step 6: Final answer
   x = 2,950.45