Finding the Fourth Proportional to 1,426.12, 1,967.50 and 866.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.12 : 1,967.50 = 866.37 : x
2. Step 2: Convert to fraction form
   1,426.12/1,967.50 = 866.37/x
3. Step 3: Cross multiply
   1,426.12x = 1,967.50 × 866.37
4. Step 4: Simplify right side
   1,426.12x = 1,704,582.98
5. Step 5: Solve for x
   x = 1,704,582.98/1,426.12
6. Step 6: Final answer
   x = 1,195.26