Finding the Fourth Proportional to 1,206,081.69, 1,809,171.72 and 307,546.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206,081.69 : 1,809,171.72 = 307,546.71 : x
2. Step 2: Convert to fraction form
   1,206,081.69/1,809,171.72 = 307,546.71/x
3. Step 3: Cross multiply
   1,206,081.69x = 1,809,171.72 × 307,546.71
4. Step 4: Simplify right side
   1,206,081.69x = 556,404,810,311.04
5. Step 5: Solve for x
   x = 556,404,810,311.04/1,206,081.69
6. Step 6: Final answer
   x = 461,332.61