Finding the Fourth Proportional to 1,265,013.27, 1,897,518.37 and 412,083.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,013.27 : 1,897,518.37 = 412,083.53 : x
2. Step 2: Convert to fraction form
   1,265,013.27/1,897,518.37 = 412,083.53/x
3. Step 3: Cross multiply
   1,265,013.27x = 1,897,518.37 × 412,083.53
4. Step 4: Simplify right side
   1,265,013.27x = 781,936,059,096.69
5. Step 5: Solve for x
   x = 781,936,059,096.69/1,265,013.27
6. Step 6: Final answer
   x = 618,124.79