Finding the Fourth Proportional to 2,800,728.10, 4,201,610.55 and 907,531.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,800,728.10 : 4,201,610.55 = 907,531.30 : x
2. Step 2: Convert to fraction form
   2,800,728.10/4,201,610.55 = 907,531.30/x
3. Step 3: Cross multiply
   2,800,728.10x = 4,201,610.55 × 907,531.30
4. Step 4: Simplify right side
   2,800,728.10x = 3,813,093,084,535.22
5. Step 5: Solve for x
   x = 3,813,093,084,535.22/2,800,728.10
6. Step 6: Final answer
   x = 1,361,464.93