Finding the Fourth Proportional to 1,667.82, 2,302.20 and 1,004.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.82 : 2,302.20 = 1,004.70 : x
2. Step 2: Convert to fraction form
   1,667.82/2,302.20 = 1,004.70/x
3. Step 3: Cross multiply
   1,667.82x = 2,302.20 × 1,004.70
4. Step 4: Simplify right side
   1,667.82x = 2,313,020.34
5. Step 5: Solve for x
   x = 2,313,020.34/1,667.82
6. Step 6: Final answer
   x = 1,386.85