Finding the Fourth Proportional to 2,398.64, 3,309.89 and 1,769.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.64 : 3,309.89 = 1,769.51 : x
2. Step 2: Convert to fraction form
   2,398.64/3,309.89 = 1,769.51/x
3. Step 3: Cross multiply
   2,398.64x = 3,309.89 × 1,769.51
4. Step 4: Simplify right side
   2,398.64x = 5,856,858.06
5. Step 5: Solve for x
   x = 5,856,858.06/2,398.64
6. Step 6: Final answer
   x = 2,441.75