Finding the Fourth Proportional to 2,978,557.54, 4,469,702.56 and 1,205,629.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,557.54 : 4,469,702.56 = 1,205,629.54 : x
2. Step 2: Convert to fraction form
   2,978,557.54/4,469,702.56 = 1,205,629.54/x
3. Step 3: Cross multiply
   2,978,557.54x = 4,469,702.56 × 1,205,629.54
4. Step 4: Simplify right side
   2,978,557.54x = 5,388,805,441,349.62
5. Step 5: Solve for x
   x = 5,388,805,441,349.62/2,978,557.54
6. Step 6: Final answer
   x = 1,809,199.71