Finding the Fourth Proportional to 1,738.72, 2,399.47 and 1,066.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.72 : 2,399.47 = 1,066.44 : x
2. Step 2: Convert to fraction form
   1,738.72/2,399.47 = 1,066.44/x
3. Step 3: Cross multiply
   1,738.72x = 2,399.47 × 1,066.44
4. Step 4: Simplify right side
   1,738.72x = 2,558,896.37
5. Step 5: Solve for x
   x = 2,558,896.37/1,738.72
6. Step 6: Final answer
   x = 1,471.72