Finding the Fourth Proportional to 2,671,128.89, 4,007,067.56 and 874,153.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671,128.89 : 4,007,067.56 = 874,153.61 : x
2. Step 2: Convert to fraction form
   2,671,128.89/4,007,067.56 = 874,153.61/x
3. Step 3: Cross multiply
   2,671,128.89x = 4,007,067.56 × 874,153.61
4. Step 4: Simplify right side
   2,671,128.89x = 3,502,792,548,681.79
5. Step 5: Solve for x
   x = 3,502,792,548,681.79/2,671,128.89
6. Step 6: Final answer
   x = 1,311,352.88