Finding the Fourth Proportional to 1,279.98, 1,921.79 and 732.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.98 : 1,921.79 = 732.83 : x
2. Step 2: Convert to fraction form
   1,279.98/1,921.79 = 732.83/x
3. Step 3: Cross multiply
   1,279.98x = 1,921.79 × 732.83
4. Step 4: Simplify right side
   1,279.98x = 1,408,337.59
5. Step 5: Solve for x
   x = 1,408,337.59/1,279.98
6. Step 6: Final answer
   x = 1,100.28