Finding the Fourth Proportional to 850,527.89, 1,275,348.87 and 401,128.10

Step by Step Solution

1. Step 1: Write the proportion equation
   850,527.89 : 1,275,348.87 = 401,128.10 : x
2. Step 2: Convert to fraction form
   850,527.89/1,275,348.87 = 401,128.10/x
3. Step 3: Cross multiply
   850,527.89x = 1,275,348.87 × 401,128.10
4. Step 4: Simplify right side
   850,527.89x = 511,578,260,677.86
5. Step 5: Solve for x
   x = 511,578,260,677.86/850,527.89
6. Step 6: Final answer
   x = 601,483.23