Finding the Fourth Proportional to 1,388.34, 2,084.34 and 1,273.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388.34 : 2,084.34 = 1,273.73 : x
2. Step 2: Convert to fraction form
   1,388.34/2,084.34 = 1,273.73/x
3. Step 3: Cross multiply
   1,388.34x = 2,084.34 × 1,273.73
4. Step 4: Simplify right side
   1,388.34x = 2,654,886.39
5. Step 5: Solve for x
   x = 2,654,886.39/1,388.34
6. Step 6: Final answer
   x = 1,912.27