Finding the Fourth Proportional to 846,397.45, 1,269,581.47 and 340,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   846,397.45 : 1,269,581.47 = 340,945.50 : x
2. Step 2: Convert to fraction form
   846,397.45/1,269,581.47 = 340,945.50/x
3. Step 3: Cross multiply
   846,397.45x = 1,269,581.47 × 340,945.50
4. Step 4: Simplify right side
   846,397.45x = 432,858,089,079.89
5. Step 5: Solve for x
   x = 432,858,089,079.89/846,397.45
6. Step 6: Final answer
   x = 511,412.33