Finding the Fourth Proportional to 1,729.45, 2,386.56 and 1,066.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,729.45 : 2,386.56 = 1,066.37 : x
2. Step 2: Convert to fraction form
   1,729.45/2,386.56 = 1,066.37/x
3. Step 3: Cross multiply
   1,729.45x = 2,386.56 × 1,066.37
4. Step 4: Simplify right side
   1,729.45x = 2,544,948.05
5. Step 5: Solve for x
   x = 2,544,948.05/1,729.45
6. Step 6: Final answer
   x = 1,471.54