Finding the Fourth Proportional to 729,848.72, 1,007,181.72 and 407,564.48

Step by Step Solution

1. Step 1: Write the proportion equation
   729,848.72 : 1,007,181.72 = 407,564.48 : x
2. Step 2: Convert to fraction form
   729,848.72/1,007,181.72 = 407,564.48/x
3. Step 3: Cross multiply
   729,848.72x = 1,007,181.72 × 407,564.48
4. Step 4: Simplify right side
   729,848.72x = 410,491,493,977.31
5. Step 5: Solve for x
   x = 410,491,493,977.31/729,848.72
6. Step 6: Final answer
   x = 562,433.67