Finding the Fourth Proportional to 1,667.97, 2,300.89 and 1,004.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.97 : 2,300.89 = 1,004.42 : x
2. Step 2: Convert to fraction form
   1,667.97/2,300.89 = 1,004.42/x
3. Step 3: Cross multiply
   1,667.97x = 2,300.89 × 1,004.42
4. Step 4: Simplify right side
   1,667.97x = 2,311,059.93
5. Step 5: Solve for x
   x = 2,311,059.93/1,667.97
6. Step 6: Final answer
   x = 1,385.55