Finding the Fourth Proportional to 825,433, 1,139,097.54 and 486,109.96

Step by Step Solution

1. Step 1: Write the proportion equation
   825,433 : 1,139,097.54 = 486,109.96 : x
2. Step 2: Convert to fraction form
   825,433/1,139,097.54 = 486,109.96/x
3. Step 3: Cross multiply
   825,433x = 1,139,097.54 × 486,109.96
4. Step 4: Simplify right side
   825,433x = 553,726,659,605.50
5. Step 5: Solve for x
   x = 553,726,659,605.50/825,433
6. Step 6: Final answer
   x = 670,831.74