Finding the Fourth Proportional to 1,426.04, 1,968.13 and 866.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.04 : 1,968.13 = 866.60 : x
2. Step 2: Convert to fraction form
   1,426.04/1,968.13 = 866.60/x
3. Step 3: Cross multiply
   1,426.04x = 1,968.13 × 866.60
4. Step 4: Simplify right side
   1,426.04x = 1,705,581.46
5. Step 5: Solve for x
   x = 1,705,581.46/1,426.04
6. Step 6: Final answer
   x = 1,196.03