Finding the Fourth Proportional to 2,342.15, 3,512.82 and 881.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.15 : 3,512.82 = 881.32 : x
2. Step 2: Convert to fraction form
   2,342.15/3,512.82 = 881.32/x
3. Step 3: Cross multiply
   2,342.15x = 3,512.82 × 881.32
4. Step 4: Simplify right side
   2,342.15x = 3,095,900.96
5. Step 5: Solve for x
   x = 3,095,900.96/2,342.15
6. Step 6: Final answer
   x = 1,321.82