Finding the Fourth Proportional to 2,153.79, 2,971.38 and 1,269.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.79 : 2,971.38 = 1,269.27 : x
2. Step 2: Convert to fraction form
   2,153.79/2,971.38 = 1,269.27/x
3. Step 3: Cross multiply
   2,153.79x = 2,971.38 × 1,269.27
4. Step 4: Simplify right side
   2,153.79x = 3,771,483.49
5. Step 5: Solve for x
   x = 3,771,483.49/2,153.79
6. Step 6: Final answer
   x = 1,751.09