Finding the Fourth Proportional to 2,150.85, 3,222.48 and 1,531.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.85 : 3,222.48 = 1,531.36 : x
2. Step 2: Convert to fraction form
   2,150.85/3,222.48 = 1,531.36/x
3. Step 3: Cross multiply
   2,150.85x = 3,222.48 × 1,531.36
4. Step 4: Simplify right side
   2,150.85x = 4,934,768.62
5. Step 5: Solve for x
   x = 4,934,768.62/2,150.85
6. Step 6: Final answer
   x = 2,294.33