Finding the Fourth Proportional to 2,447.35, 3,377.31 and 1,328.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.35 : 3,377.31 = 1,328.28 : x
2. Step 2: Convert to fraction form
   2,447.35/3,377.31 = 1,328.28/x
3. Step 3: Cross multiply
   2,447.35x = 3,377.31 × 1,328.28
4. Step 4: Simplify right side
   2,447.35x = 4,485,991.29
5. Step 5: Solve for x
   x = 4,485,991.29/2,447.35
6. Step 6: Final answer
   x = 1,833.00