Finding the Fourth Proportional to 801,212.09, 1,105,673.00 and 438,659.00

Step by Step Solution

1. Step 1: Write the proportion equation
   801,212.09 : 1,105,673.00 = 438,659.00 : x
2. Step 2: Convert to fraction form
   801,212.09/1,105,673.00 = 438,659.00/x
3. Step 3: Cross multiply
   801,212.09x = 1,105,673.00 × 438,659.00
4. Step 4: Simplify right side
   801,212.09x = 485,013,404,785.34
5. Step 5: Solve for x
   x = 485,013,404,785.34/801,212.09
6. Step 6: Final answer
   x = 605,349.59