Finding the Fourth Proportional to 2,485,453.90, 3,728,142.78 and 1,118,261.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485,453.90 : 3,728,142.78 = 1,118,261.92 : x
2. Step 2: Convert to fraction form
   2,485,453.90/3,728,142.78 = 1,118,261.92/x
3. Step 3: Cross multiply
   2,485,453.90x = 3,728,142.78 × 1,118,261.92
4. Step 4: Simplify right side
   2,485,453.90x = 4,169,040,103,196.94
5. Step 5: Solve for x
   x = 4,169,040,103,196.94/2,485,453.90
6. Step 6: Final answer
   x = 1,677,375.75