Finding the Fourth Proportional to 584,550.88, 806,383.01 and 355,047.10

Step by Step Solution

1. Step 1: Write the proportion equation
   584,550.88 : 806,383.01 = 355,047.10 : x
2. Step 2: Convert to fraction form
   584,550.88/806,383.01 = 355,047.10/x
3. Step 3: Cross multiply
   584,550.88x = 806,383.01 × 355,047.10
4. Step 4: Simplify right side
   584,550.88x = 286,303,948,061.43
5. Step 5: Solve for x
   x = 286,303,948,061.43/584,550.88
6. Step 6: Final answer
   x = 489,784.48