Finding the Fourth Proportional to 2,298.98, 3,172.56 and 1,251.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.98 : 3,172.56 = 1,251.02 : x
2. Step 2: Convert to fraction form
   2,298.98/3,172.56 = 1,251.02/x
3. Step 3: Cross multiply
   2,298.98x = 3,172.56 × 1,251.02
4. Step 4: Simplify right side
   2,298.98x = 3,968,936.01
5. Step 5: Solve for x
   x = 3,968,936.01/2,298.98
6. Step 6: Final answer
   x = 1,726.39