Finding the Fourth Proportional to 1,426.10, 1,967.45 and 866.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.10 : 1,967.45 = 866.36 : x
2. Step 2: Convert to fraction form
   1,426.10/1,967.45 = 866.36/x
3. Step 3: Cross multiply
   1,426.10x = 1,967.45 × 866.36
4. Step 4: Simplify right side
   1,426.10x = 1,704,505.81
5. Step 5: Solve for x
   x = 1,704,505.81/1,426.10
6. Step 6: Final answer
   x = 1,195.23