Finding the Fourth Proportional to 3,739.90, 5,161.01 and 2,061.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,739.90 : 5,161.01 = 2,061.30 : x
2. Step 2: Convert to fraction form
   3,739.90/5,161.01 = 2,061.30/x
3. Step 3: Cross multiply
   3,739.90x = 5,161.01 × 2,061.30
4. Step 4: Simplify right side
   3,739.90x = 10,638,389.91
5. Step 5: Solve for x
   x = 10,638,389.91/3,739.90
6. Step 6: Final answer
   x = 2,844.57