Finding the Fourth Proportional to 2,153.67, 2,972.21 and 1,269.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.67 : 2,972.21 = 1,269.56 : x
2. Step 2: Convert to fraction form
   2,153.67/2,972.21 = 1,269.56/x
3. Step 3: Cross multiply
   2,153.67x = 2,972.21 × 1,269.56
4. Step 4: Simplify right side
   2,153.67x = 3,773,377.72
5. Step 5: Solve for x
   x = 3,773,377.72/2,153.67
6. Step 6: Final answer
   x = 1,752.07