Finding the Fourth Proportional to 656,123.42, 980,590.06 and 479,003.42

Step by Step Solution

1. Step 1: Write the proportion equation
   656,123.42 : 980,590.06 = 479,003.42 : x
2. Step 2: Convert to fraction form
   656,123.42/980,590.06 = 479,003.42/x
3. Step 3: Cross multiply
   656,123.42x = 980,590.06 × 479,003.42
4. Step 4: Simplify right side
   656,123.42x = 469,705,992,358.01
5. Step 5: Solve for x
   x = 469,705,992,358.01/656,123.42
6. Step 6: Final answer
   x = 715,880.55