Finding the Fourth Proportional to 1,150,518.47, 1,587,769.49 and 641,224.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,518.47 : 1,587,769.49 = 641,224.49 : x
2. Step 2: Convert to fraction form
   1,150,518.47/1,587,769.49 = 641,224.49/x
3. Step 3: Cross multiply
   1,150,518.47x = 1,587,769.49 × 641,224.49
4. Step 4: Simplify right side
   1,150,518.47x = 1,018,116,675,127.02
5. Step 5: Solve for x
   x = 1,018,116,675,127.02/1,150,518.47
6. Step 6: Final answer
   x = 884,919.89