Finding the Fourth Proportional to 2,143.34, 2,957.82 and 1,234.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.34 : 2,957.82 = 1,234.99 : x
2. Step 2: Convert to fraction form
   2,143.34/2,957.82 = 1,234.99/x
3. Step 3: Cross multiply
   2,143.34x = 2,957.82 × 1,234.99
4. Step 4: Simplify right side
   2,143.34x = 3,652,878.12
5. Step 5: Solve for x
   x = 3,652,878.12/2,143.34
6. Step 6: Final answer
   x = 1,704.29