Finding the Fourth Proportional to 1,790.48, 2,470.91 and 1,004.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790.48 : 2,470.91 = 1,004.59 : x
2. Step 2: Convert to fraction form
   1,790.48/2,470.91 = 1,004.59/x
3. Step 3: Cross multiply
   1,790.48x = 2,470.91 × 1,004.59
4. Step 4: Simplify right side
   1,790.48x = 2,482,234.10
5. Step 5: Solve for x
   x = 2,482,234.10/1,790.48
6. Step 6: Final answer
   x = 1,386.35