Finding the Fourth Proportional to 1,097,667.36, 1,514,300.16 and 644,754.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,667.36 : 1,514,300.16 = 644,754.24 : x
2. Step 2: Convert to fraction form
   1,097,667.36/1,514,300.16 = 644,754.24/x
3. Step 3: Cross multiply
   1,097,667.36x = 1,514,300.16 × 644,754.24
4. Step 4: Simplify right side
   1,097,667.36x = 976,351,448,792.68
5. Step 5: Solve for x
   x = 976,351,448,792.68/1,097,667.36
6. Step 6: Final answer
   x = 889,478.44