Finding the Fourth Proportional to 2,511.48, 3,769.53 and 1,279.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.48 : 3,769.53 = 1,279.74 : x
2. Step 2: Convert to fraction form
   2,511.48/3,769.53 = 1,279.74/x
3. Step 3: Cross multiply
   2,511.48x = 3,769.53 × 1,279.74
4. Step 4: Simplify right side
   2,511.48x = 4,824,018.32
5. Step 5: Solve for x
   x = 4,824,018.32/2,511.48
6. Step 6: Final answer
   x = 1,920.79