Finding the Fourth Proportional to 1,256,058.72, 1,887,894.54 and 831,044.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256,058.72 : 1,887,894.54 = 831,044.16 : x
2. Step 2: Convert to fraction form
   1,256,058.72/1,887,894.54 = 831,044.16/x
3. Step 3: Cross multiply
   1,256,058.72x = 1,887,894.54 × 831,044.16
4. Step 4: Simplify right side
   1,256,058.72x = 1,568,923,732,162.89
5. Step 5: Solve for x
   x = 1,568,923,732,162.89/1,256,058.72
6. Step 6: Final answer
   x = 1,249,084.70