Finding the Fourth Proportional to 479,377.34, 661,780.23 and 298,147.69

Step by Step Solution

1. Step 1: Write the proportion equation
   479,377.34 : 661,780.23 = 298,147.69 : x
2. Step 2: Convert to fraction form
   479,377.34/661,780.23 = 298,147.69/x
3. Step 3: Cross multiply
   479,377.34x = 661,780.23 × 298,147.69
4. Step 4: Simplify right side
   479,377.34x = 197,308,242,848.83
5. Step 5: Solve for x
   x = 197,308,242,848.83/479,377.34
6. Step 6: Final answer
   x = 411,592.76