Finding the Fourth Proportional to 698,436, 963,796.32 and 411,890.40

Step by Step Solution

1. Step 1: Write the proportion equation
   698,436 : 963,796.32 = 411,890.40 : x
2. Step 2: Convert to fraction form
   698,436/963,796.32 = 411,890.40/x
3. Step 3: Cross multiply
   698,436x = 963,796.32 × 411,890.40
4. Step 4: Simplify right side
   698,436x = 396,978,451,763.33
5. Step 5: Solve for x
   x = 396,978,451,763.33/698,436
6. Step 6: Final answer
   x = 568,382.00