Finding the Fourth Proportional to 2,588.78, 3,881.97 and 833.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.78 : 3,881.97 = 833.46 : x
2. Step 2: Convert to fraction form
   2,588.78/3,881.97 = 833.46/x
3. Step 3: Cross multiply
   2,588.78x = 3,881.97 × 833.46
4. Step 4: Simplify right side
   2,588.78x = 3,235,466.72
5. Step 5: Solve for x
   x = 3,235,466.72/2,588.78
6. Step 6: Final answer
   x = 1,249.81