Finding the Fourth Proportional to 2,511.50, 3,769.58 and 1,279.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.50 : 3,769.58 = 1,279.83 : x
2. Step 2: Convert to fraction form
   2,511.50/3,769.58 = 1,279.83/x
3. Step 3: Cross multiply
   2,511.50x = 3,769.58 × 1,279.83
4. Step 4: Simplify right side
   2,511.50x = 4,824,410.50
5. Step 5: Solve for x
   x = 4,824,410.50/2,511.50
6. Step 6: Final answer
   x = 1,920.93