Finding the Fourth Proportional to 1,003.72, 1,383.24 and 723.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.72 : 1,383.24 = 723.46 : x
2. Step 2: Convert to fraction form
   1,003.72/1,383.24 = 723.46/x
3. Step 3: Cross multiply
   1,003.72x = 1,383.24 × 723.46
4. Step 4: Simplify right side
   1,003.72x = 1,000,718.81
5. Step 5: Solve for x
   x = 1,000,718.81/1,003.72
6. Step 6: Final answer
   x = 997.01