Finding the Fourth Proportional to 2,298.80, 3,172.32 and 1,304.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.80 : 3,172.32 = 1,304.10 : x
2. Step 2: Convert to fraction form
   2,298.80/3,172.32 = 1,304.10/x
3. Step 3: Cross multiply
   2,298.80x = 3,172.32 × 1,304.10
4. Step 4: Simplify right side
   2,298.80x = 4,137,022.51
5. Step 5: Solve for x
   x = 4,137,022.51/2,298.80
6. Step 6: Final answer
   x = 1,799.64