Finding the Fourth Proportional to 863,667.84, 1,295,667.81 and 331,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   863,667.84 : 1,295,667.81 = 331,147.34 : x
2. Step 2: Convert to fraction form
   863,667.84/1,295,667.81 = 331,147.34/x
3. Step 3: Cross multiply
   863,667.84x = 1,295,667.81 × 331,147.34
4. Step 4: Simplify right side
   863,667.84x = 429,056,948,805.13
5. Step 5: Solve for x
   x = 429,056,948,805.13/863,667.84
6. Step 6: Final answer
   x = 496,784.68