Finding the Fourth Proportional to 1,267,839.63, 1,901,937.27 and 414,978.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,839.63 : 1,901,937.27 = 414,978.27 : x
2. Step 2: Convert to fraction form
   1,267,839.63/1,901,937.27 = 414,978.27/x
3. Step 3: Cross multiply
   1,267,839.63x = 1,901,937.27 × 414,978.27
4. Step 4: Simplify right side
   1,267,839.63x = 789,262,637,953.12
5. Step 5: Solve for x
   x = 789,262,637,953.12/1,267,839.63
6. Step 6: Final answer
   x = 622,525.61