Finding the Fourth Proportional to 819,404, 1,130,782.40 and 456,850.72

Step by Step Solution

1. Step 1: Write the proportion equation
   819,404 : 1,130,782.40 = 456,850.72 : x
2. Step 2: Convert to fraction form
   819,404/1,130,782.40 = 456,850.72/x
3. Step 3: Cross multiply
   819,404x = 1,130,782.40 × 456,850.72
4. Step 4: Simplify right side
   819,404x = 516,598,753,603.33
5. Step 5: Solve for x
   x = 516,598,753,603.33/819,404
6. Step 6: Final answer
   x = 630,456.71