Finding the Fourth Proportional to 1,871.78, 2,804.46 and 1,323.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.78 : 2,804.46 = 1,323.06 : x
2. Step 2: Convert to fraction form
   1,871.78/2,804.46 = 1,323.06/x
3. Step 3: Cross multiply
   1,871.78x = 2,804.46 × 1,323.06
4. Step 4: Simplify right side
   1,871.78x = 3,710,468.85
5. Step 5: Solve for x
   x = 3,710,468.85/1,871.78
6. Step 6: Final answer
   x = 1,982.32