Finding the Fourth Proportional to 2,333.78, 3,498.43 and 872.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.78 : 3,498.43 = 872.54 : x
2. Step 2: Convert to fraction form
   2,333.78/3,498.43 = 872.54/x
3. Step 3: Cross multiply
   2,333.78x = 3,498.43 × 872.54
4. Step 4: Simplify right side
   2,333.78x = 3,052,520.11
5. Step 5: Solve for x
   x = 3,052,520.11/2,333.78
6. Step 6: Final answer
   x = 1,307.97