Finding the Fourth Proportional to 2,157.33, 3,234.24 and 1,061.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.33 : 3,234.24 = 1,061.13 : x
2. Step 2: Convert to fraction form
   2,157.33/3,234.24 = 1,061.13/x
3. Step 3: Cross multiply
   2,157.33x = 3,234.24 × 1,061.13
4. Step 4: Simplify right side
   2,157.33x = 3,431,949.09
5. Step 5: Solve for x
   x = 3,431,949.09/2,157.33
6. Step 6: Final answer
   x = 1,590.83