Finding the Fourth Proportional to 622,504.86, 934,048.89 and 306,789.54

Step by Step Solution

1. Step 1: Write the proportion equation
   622,504.86 : 934,048.89 = 306,789.54 : x
2. Step 2: Convert to fraction form
   622,504.86/934,048.89 = 306,789.54/x
3. Step 3: Cross multiply
   622,504.86x = 934,048.89 × 306,789.54
4. Step 4: Simplify right side
   622,504.86x = 286,556,429,300.61
5. Step 5: Solve for x
   x = 286,556,429,300.61/622,504.86
6. Step 6: Final answer
   x = 460,328.02