Finding the Fourth Proportional to 1,928.73, 2,661.78 and 1,142.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.73 : 2,661.78 = 1,142.91 : x
2. Step 2: Convert to fraction form
   1,928.73/2,661.78 = 1,142.91/x
3. Step 3: Cross multiply
   1,928.73x = 2,661.78 × 1,142.91
4. Step 4: Simplify right side
   1,928.73x = 3,042,174.98
5. Step 5: Solve for x
   x = 3,042,174.98/1,928.73
6. Step 6: Final answer
   x = 1,577.29