Finding the Fourth Proportional to 649,333.35, 895,499.82 and 407,638.40

Step by Step Solution

1. Step 1: Write the proportion equation
   649,333.35 : 895,499.82 = 407,638.40 : x
2. Step 2: Convert to fraction form
   649,333.35/895,499.82 = 407,638.40/x
3. Step 3: Cross multiply
   649,333.35x = 895,499.82 × 407,638.40
4. Step 4: Simplify right side
   649,333.35x = 365,040,109,347.59
5. Step 5: Solve for x
   x = 365,040,109,347.59/649,333.35
6. Step 6: Final answer
   x = 562,176.75