Finding the Fourth Proportional to 2,331.54, 3,495.33 and 870.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,331.54 : 3,495.33 = 870.42 : x
2. Step 2: Convert to fraction form
   2,331.54/3,495.33 = 870.42/x
3. Step 3: Cross multiply
   2,331.54x = 3,495.33 × 870.42
4. Step 4: Simplify right side
   2,331.54x = 3,042,405.14
5. Step 5: Solve for x
   x = 3,042,405.14/2,331.54
6. Step 6: Final answer
   x = 1,304.89