Finding the Fourth Proportional to 1,408.43, 1,944.28 and 1,004.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.43 : 1,944.28 = 1,004.96 : x
2. Step 2: Convert to fraction form
   1,408.43/1,944.28 = 1,004.96/x
3. Step 3: Cross multiply
   1,408.43x = 1,944.28 × 1,004.96
4. Step 4: Simplify right side
   1,408.43x = 1,953,925.98
5. Step 5: Solve for x
   x = 1,953,925.98/1,408.43
6. Step 6: Final answer
   x = 1,387.31