Finding the Fourth Proportional to 2,113.41, 3,167.98 and 881.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.41 : 3,167.98 = 881.50 : x
2. Step 2: Convert to fraction form
   2,113.41/3,167.98 = 881.50/x
3. Step 3: Cross multiply
   2,113.41x = 3,167.98 × 881.50
4. Step 4: Simplify right side
   2,113.41x = 2,792,574.37
5. Step 5: Solve for x
   x = 2,792,574.37/2,113.41
6. Step 6: Final answer
   x = 1,321.36