Finding the Fourth Proportional to 558,700, 770,871.54 and 329,266.42

Step by Step Solution

1. Step 1: Write the proportion equation
   558,700 : 770,871.54 = 329,266.42 : x
2. Step 2: Convert to fraction form
   558,700/770,871.54 = 329,266.42/x
3. Step 3: Cross multiply
   558,700x = 770,871.54 × 329,266.42
4. Step 4: Simplify right side
   558,700x = 253,822,112,255.69
5. Step 5: Solve for x
   x = 253,822,112,255.69/558,700
6. Step 6: Final answer
   x = 454,308.42