Finding the Fourth Proportional to 1,638,514, 2,458,185.72 and 456,562

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,514 : 2,458,185.72 = 456,562 : x
2. Step 2: Convert to fraction form
   1,638,514/2,458,185.72 = 456,562/x
3. Step 3: Cross multiply
   1,638,514x = 2,458,185.72 × 456,562
4. Step 4: Simplify right side
   1,638,514x = 1,122,314,188,694.64
5. Step 5: Solve for x
   x = 1,122,314,188,694.64/1,638,514
6. Step 6: Final answer
   x = 684,958.56