Finding the Fourth Proportional to 1,928.04, 2,658.78 and 1,553.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.04 : 2,658.78 = 1,553.82 : x
2. Step 2: Convert to fraction form
   1,928.04/2,658.78 = 1,553.82/x
3. Step 3: Cross multiply
   1,928.04x = 2,658.78 × 1,553.82
4. Step 4: Simplify right side
   1,928.04x = 4,131,265.54
5. Step 5: Solve for x
   x = 4,131,265.54/1,928.04
6. Step 6: Final answer
   x = 2,142.73