Finding the Fourth Proportional to 2,298.76, 3,172.58 and 1,304.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.76 : 3,172.58 = 1,304.36 : x
2. Step 2: Convert to fraction form
   2,298.76/3,172.58 = 1,304.36/x
3. Step 3: Cross multiply
   2,298.76x = 3,172.58 × 1,304.36
4. Step 4: Simplify right side
   2,298.76x = 4,138,191.61
5. Step 5: Solve for x
   x = 4,138,191.61/2,298.76
6. Step 6: Final answer
   x = 1,800.18