Finding the Fourth Proportional to 1,790.45, 2,470.71 and 1,004.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790.45 : 2,470.71 = 1,004.42 : x
2. Step 2: Convert to fraction form
   1,790.45/2,470.71 = 1,004.42/x
3. Step 3: Cross multiply
   1,790.45x = 2,470.71 × 1,004.42
4. Step 4: Simplify right side
   1,790.45x = 2,481,630.54
5. Step 5: Solve for x
   x = 2,481,630.54/1,790.45
6. Step 6: Final answer
   x = 1,386.04