Finding the Fourth Proportional to 3,371.31, 5,054.56 and 1,289.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,371.31 : 5,054.56 = 1,289.56 : x
2. Step 2: Convert to fraction form
   3,371.31/5,054.56 = 1,289.56/x
3. Step 3: Cross multiply
   3,371.31x = 5,054.56 × 1,289.56
4. Step 4: Simplify right side
   3,371.31x = 6,518,158.39
5. Step 5: Solve for x
   x = 6,518,158.39/3,371.31
6. Step 6: Final answer
   x = 1,933.42