Finding the Fourth Proportional to 2,298.92, 3,172.55 and 1,304.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.92 : 3,172.55 = 1,304.12 : x
2. Step 2: Convert to fraction form
   2,298.92/3,172.55 = 1,304.12/x
3. Step 3: Cross multiply
   2,298.92x = 3,172.55 × 1,304.12
4. Step 4: Simplify right side
   2,298.92x = 4,137,385.91
5. Step 5: Solve for x
   x = 4,137,385.91/2,298.92
6. Step 6: Final answer
   x = 1,799.71