Finding the Fourth Proportional to 1,004.04, 1,385.69 and 611.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.04 : 1,385.69 = 611.06 : x
2. Step 2: Convert to fraction form
   1,004.04/1,385.69 = 611.06/x
3. Step 3: Cross multiply
   1,004.04x = 1,385.69 × 611.06
4. Step 4: Simplify right side
   1,004.04x = 846,729.75
5. Step 5: Solve for x
   x = 846,729.75/1,004.04
6. Step 6: Final answer
   x = 843.32