Finding the Fourth Proportional to 911,017.97, 1,257,183.29 and 503,111.69

Step by Step Solution

1. Step 1: Write the proportion equation
   911,017.97 : 1,257,183.29 = 503,111.69 : x
2. Step 2: Convert to fraction form
   911,017.97/1,257,183.29 = 503,111.69/x
3. Step 3: Cross multiply
   911,017.97x = 1,257,183.29 × 503,111.69
4. Step 4: Simplify right side
   911,017.97x = 632,503,607,156.10
5. Step 5: Solve for x
   x = 632,503,607,156.10/911,017.97
6. Step 6: Final answer
   x = 694,282.25