Finding the Fourth Proportional to 1,662.56, 2,291.56 and 1,426.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.56 : 2,291.56 = 1,426.75 : x
2. Step 2: Convert to fraction form
   1,662.56/2,291.56 = 1,426.75/x
3. Step 3: Cross multiply
   1,662.56x = 2,291.56 × 1,426.75
4. Step 4: Simplify right side
   1,662.56x = 3,269,473.93
5. Step 5: Solve for x
   x = 3,269,473.93/1,662.56
6. Step 6: Final answer
   x = 1,966.53