Finding the Fourth Proportional to 2,111.62, 3,166.32 and 1,234.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.62 : 3,166.32 = 1,234.42 : x
2. Step 2: Convert to fraction form
   2,111.62/3,166.32 = 1,234.42/x
3. Step 3: Cross multiply
   2,111.62x = 3,166.32 × 1,234.42
4. Step 4: Simplify right side
   2,111.62x = 3,908,568.73
5. Step 5: Solve for x
   x = 3,908,568.73/2,111.62
6. Step 6: Final answer
   x = 1,850.98