Finding the Fourth Proportional to 2,157.38, 3,236.42 and 1,061.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.38 : 3,236.42 = 1,061.85 : x
2. Step 2: Convert to fraction form
   2,157.38/3,236.42 = 1,061.85/x
3. Step 3: Cross multiply
   2,157.38x = 3,236.42 × 1,061.85
4. Step 4: Simplify right side
   2,157.38x = 3,436,607.37
5. Step 5: Solve for x
   x = 3,436,607.37/2,157.38
6. Step 6: Final answer
   x = 1,592.96