Finding the Fourth Proportional to 3,945.81, 5,914.72 and 2,560.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.81 : 5,914.72 = 2,560.03 : x
2. Step 2: Convert to fraction form
   3,945.81/5,914.72 = 2,560.03/x
3. Step 3: Cross multiply
   3,945.81x = 5,914.72 × 2,560.03
4. Step 4: Simplify right side
   3,945.81x = 15,141,860.64
5. Step 5: Solve for x
   x = 15,141,860.64/3,945.81
6. Step 6: Final answer
   x = 3,837.45