Finding the Fourth Proportional to 2,513.82, 3,766.88 and 1,279.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.82 : 3,766.88 = 1,279.38 : x
2. Step 2: Convert to fraction form
   2,513.82/3,766.88 = 1,279.38/x
3. Step 3: Cross multiply
   2,513.82x = 3,766.88 × 1,279.38
4. Step 4: Simplify right side
   2,513.82x = 4,819,270.93
5. Step 5: Solve for x
   x = 4,819,270.93/2,513.82
6. Step 6: Final answer
   x = 1,917.11