Finding the Fourth Proportional to 1,821.37, 2,729.43 and 1,038.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821.37 : 2,729.43 = 1,038.96 : x
2. Step 2: Convert to fraction form
   1,821.37/2,729.43 = 1,038.96/x
3. Step 3: Cross multiply
   1,821.37x = 2,729.43 × 1,038.96
4. Step 4: Simplify right side
   1,821.37x = 2,835,768.59
5. Step 5: Solve for x
   x = 2,835,768.59/1,821.37
6. Step 6: Final answer
   x = 1,556.94