Finding the Fourth Proportional to 656,914.89, 906,788.34 and 511,432.41

Step by Step Solution

1. Step 1: Write the proportion equation
   656,914.89 : 906,788.34 = 511,432.41 : x
2. Step 2: Convert to fraction form
   656,914.89/906,788.34 = 511,432.41/x
3. Step 3: Cross multiply
   656,914.89x = 906,788.34 × 511,432.41
4. Step 4: Simplify right side
   656,914.89x = 463,760,946,086.10
5. Step 5: Solve for x
   x = 463,760,946,086.10/656,914.89
6. Step 6: Final answer
   x = 705,968.08