Finding the Fourth Proportional to 783,667.30, 1,081,579.10 and 477,921.06

Step by Step Solution

1. Step 1: Write the proportion equation
   783,667.30 : 1,081,579.10 = 477,921.06 : x
2. Step 2: Convert to fraction form
   783,667.30/1,081,579.10 = 477,921.06/x
3. Step 3: Cross multiply
   783,667.30x = 1,081,579.10 × 477,921.06
4. Step 4: Simplify right side
   783,667.30x = 516,909,429,945.85
5. Step 5: Solve for x
   x = 516,909,429,945.85/783,667.30
6. Step 6: Final answer
   x = 659,603.16