Finding the Fourth Proportional to 2,142.73, 2,956.96 and 1,198.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.73 : 2,956.96 = 1,198.53 : x
2. Step 2: Convert to fraction form
   2,142.73/2,956.96 = 1,198.53/x
3. Step 3: Cross multiply
   2,142.73x = 2,956.96 × 1,198.53
4. Step 4: Simplify right side
   2,142.73x = 3,543,990.48
5. Step 5: Solve for x
   x = 3,543,990.48/2,142.73
6. Step 6: Final answer
   x = 1,653.96