Finding the Fourth Proportional to 2,342.05, 3,512.22 and 880.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.05 : 3,512.22 = 880.81 : x
2. Step 2: Convert to fraction form
   2,342.05/3,512.22 = 880.81/x
3. Step 3: Cross multiply
   2,342.05x = 3,512.22 × 880.81
4. Step 4: Simplify right side
   2,342.05x = 3,093,598.50
5. Step 5: Solve for x
   x = 3,093,598.50/2,342.05
6. Step 6: Final answer
   x = 1,320.89