Finding the Fourth Proportional to 2,154.56, 2,974.56 and 1,369.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154.56 : 2,974.56 = 1,369.28 : x
2. Step 2: Convert to fraction form
   2,154.56/2,974.56 = 1,369.28/x
3. Step 3: Cross multiply
   2,154.56x = 2,974.56 × 1,369.28
4. Step 4: Simplify right side
   2,154.56x = 4,073,005.52
5. Step 5: Solve for x
   x = 4,073,005.52/2,154.56
6. Step 6: Final answer
   x = 1,890.41