Finding the Fourth Proportional to 2,106, 2,906.88 and 1,266.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106 : 2,906.88 = 1,266.98 : x
2. Step 2: Convert to fraction form
   2,106/2,906.88 = 1,266.98/x
3. Step 3: Cross multiply
   2,106x = 2,906.88 × 1,266.98
4. Step 4: Simplify right side
   2,106x = 3,682,958.82
5. Step 5: Solve for x
   x = 3,682,958.82/2,106
6. Step 6: Final answer
   x = 1,748.79