Finding the Fourth Proportional to 1,871.91, 2,804.78 and 1,322.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.91 : 2,804.78 = 1,322.93 : x
2. Step 2: Convert to fraction form
   1,871.91/2,804.78 = 1,322.93/x
3. Step 3: Cross multiply
   1,871.91x = 2,804.78 × 1,322.93
4. Step 4: Simplify right side
   1,871.91x = 3,710,530.48
5. Step 5: Solve for x
   x = 3,710,530.48/1,871.91
6. Step 6: Final answer
   x = 1,982.22