Finding the Fourth Proportional to 3,756.31, 5,183.56 and 2,077.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,756.31 : 5,183.56 = 2,077.61 : x
2. Step 2: Convert to fraction form
   3,756.31/5,183.56 = 2,077.61/x
3. Step 3: Cross multiply
   3,756.31x = 5,183.56 × 2,077.61
4. Step 4: Simplify right side
   3,756.31x = 10,769,384.98
5. Step 5: Solve for x
   x = 10,769,384.98/3,756.31
6. Step 6: Final answer
   x = 2,867.01