Finding the Fourth Proportional to 3,338,540.48, 5,007,862.56 and 814,243.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,338,540.48 : 5,007,862.56 = 814,243.52 : x
2. Step 2: Convert to fraction form
   3,338,540.48/5,007,862.56 = 814,243.52/x
3. Step 3: Cross multiply
   3,338,540.48x = 5,007,862.56 × 814,243.52
4. Step 4: Simplify right side
   3,338,540.48x = 4,077,619,638,530.61
5. Step 5: Solve for x
   x = 4,077,619,638,530.61/3,338,540.48
6. Step 6: Final answer
   x = 1,221,377.92