Finding the Fourth Proportional to 3,503.72, 5,253.78 and 1,038.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,503.72 : 5,253.78 = 1,038.23 : x
2. Step 2: Convert to fraction form
   3,503.72/5,253.78 = 1,038.23/x
3. Step 3: Cross multiply
   3,503.72x = 5,253.78 × 1,038.23
4. Step 4: Simplify right side
   3,503.72x = 5,454,632.01
5. Step 5: Solve for x
   x = 5,454,632.01/3,503.72
6. Step 6: Final answer
   x = 1,556.81