Finding the Fourth Proportional to 1,951.40, 2,692.91 and 1,067.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,951.40 : 2,692.91 = 1,067.15 : x
2. Step 2: Convert to fraction form
   1,951.40/2,692.91 = 1,067.15/x
3. Step 3: Cross multiply
   1,951.40x = 2,692.91 × 1,067.15
4. Step 4: Simplify right side
   1,951.40x = 2,873,733.57
5. Step 5: Solve for x
   x = 2,873,733.57/1,951.40
6. Step 6: Final answer
   x = 1,472.65