Finding the Fourth Proportional to 2,154.56, 2,972.54 and 1,269.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154.56 : 2,972.54 = 1,269.72 : x
2. Step 2: Convert to fraction form
   2,154.56/2,972.54 = 1,269.72/x
3. Step 3: Cross multiply
   2,154.56x = 2,972.54 × 1,269.72
4. Step 4: Simplify right side
   2,154.56x = 3,774,293.49
5. Step 5: Solve for x
   x = 3,774,293.49/2,154.56
6. Step 6: Final answer
   x = 1,751.77