Finding the Fourth Proportional to 2,153.33, 3,228.10 and 1,273.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.33 : 3,228.10 = 1,273.67 : x
2. Step 2: Convert to fraction form
   2,153.33/3,228.10 = 1,273.67/x
3. Step 3: Cross multiply
   2,153.33x = 3,228.10 × 1,273.67
4. Step 4: Simplify right side
   2,153.33x = 4,111,552.23
5. Step 5: Solve for x
   x = 4,111,552.23/2,153.33
6. Step 6: Final answer
   x = 1,909.39