Finding the Fourth Proportional to 1,667.81, 2,302.49 and 1,004.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.81 : 2,302.49 = 1,004.82 : x
2. Step 2: Convert to fraction form
   1,667.81/2,302.49 = 1,004.82/x
3. Step 3: Cross multiply
   1,667.81x = 2,302.49 × 1,004.82
4. Step 4: Simplify right side
   1,667.81x = 2,313,582.98
5. Step 5: Solve for x
   x = 2,313,582.98/1,667.81
6. Step 6: Final answer
   x = 1,387.20