Finding the Fourth Proportional to 2,143.73, 2,958.41 and 1,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.73 : 2,958.41 = 1,199.50 : x
2. Step 2: Convert to fraction form
   2,143.73/2,958.41 = 1,199.50/x
3. Step 3: Cross multiply
   2,143.73x = 2,958.41 × 1,199.50
4. Step 4: Simplify right side
   2,143.73x = 3,548,608.40
5. Step 5: Solve for x
   x = 3,548,608.40/2,143.73
6. Step 6: Final answer
   x = 1,655.34