Finding the Fourth Proportional to 1,871.82, 2,808.71 and 832.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.82 : 2,808.71 = 832.57 : x
2. Step 2: Convert to fraction form
   1,871.82/2,808.71 = 832.57/x
3. Step 3: Cross multiply
   1,871.82x = 2,808.71 × 832.57
4. Step 4: Simplify right side
   1,871.82x = 2,338,447.68
5. Step 5: Solve for x
   x = 2,338,447.68/1,871.82
6. Step 6: Final answer
   x = 1,249.29