Finding the Fourth Proportional to 1,426.06, 1,967.45 and 866.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.06 : 1,967.45 = 866.76 : x
2. Step 2: Convert to fraction form
   1,426.06/1,967.45 = 866.76/x
3. Step 3: Cross multiply
   1,426.06x = 1,967.45 × 866.76
4. Step 4: Simplify right side
   1,426.06x = 1,705,306.96
5. Step 5: Solve for x
   x = 1,705,306.96/1,426.06
6. Step 6: Final answer
   x = 1,195.82