Finding the Fourth Proportional to 1,604.03, 2,404.61 and 864.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.03 : 2,404.61 = 864.04 : x
2. Step 2: Convert to fraction form
   1,604.03/2,404.61 = 864.04/x
3. Step 3: Cross multiply
   1,604.03x = 2,404.61 × 864.04
4. Step 4: Simplify right side
   1,604.03x = 2,077,668.89
5. Step 5: Solve for x
   x = 2,077,668.89/1,604.03
6. Step 6: Final answer
   x = 1,295.28