Finding the Fourth Proportional to 1,942.42, 2,910.99 and 1,248.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.42 : 2,910.99 = 1,248.73 : x
2. Step 2: Convert to fraction form
   1,942.42/2,910.99 = 1,248.73/x
3. Step 3: Cross multiply
   1,942.42x = 2,910.99 × 1,248.73
4. Step 4: Simplify right side
   1,942.42x = 3,635,040.54
5. Step 5: Solve for x
   x = 3,635,040.54/1,942.42
6. Step 6: Final answer
   x = 1,871.40