Finding the Fourth Proportional to 2,939.77, 4,057.01 and 1,760.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,939.77 : 4,057.01 = 1,760.81 : x
2. Step 2: Convert to fraction form
   2,939.77/4,057.01 = 1,760.81/x
3. Step 3: Cross multiply
   2,939.77x = 4,057.01 × 1,760.81
4. Step 4: Simplify right side
   2,939.77x = 7,143,638.32
5. Step 5: Solve for x
   x = 7,143,638.32/2,939.77
6. Step 6: Final answer
   x = 2,430.00