Finding the Fourth Proportional to 1,067,826.20, 1,601,409.24 and 309,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067,826.20 : 1,601,409.24 = 309,723.50 : x
2. Step 2: Convert to fraction form
   1,067,826.20/1,601,409.24 = 309,723.50/x
3. Step 3: Cross multiply
   1,067,826.20x = 1,601,409.24 × 309,723.50
4. Step 4: Simplify right side
   1,067,826.20x = 495,994,066,738.09
5. Step 5: Solve for x
   x = 495,994,066,738.09/1,067,826.20
6. Step 6: Final answer
   x = 464,489.51