Finding the Fourth Proportional to 1,426,413.53, 2,139,744.83 and 361,455.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426,413.53 : 2,139,744.83 = 361,455.63 : x
2. Step 2: Convert to fraction form
   1,426,413.53/2,139,744.83 = 361,455.63/x
3. Step 3: Cross multiply
   1,426,413.53x = 2,139,744.83 × 361,455.63
4. Step 4: Simplify right side
   1,426,413.53x = 773,422,815,566.89
5. Step 5: Solve for x
   x = 773,422,815,566.89/1,426,413.53
6. Step 6: Final answer
   x = 542,215.00