Finding the Fourth Proportional to 885,779, 1,222,440.72 and 503,928.80

Step by Step Solution

1. Step 1: Write the proportion equation
   885,779 : 1,222,440.72 = 503,928.80 : x
2. Step 2: Convert to fraction form
   885,779/1,222,440.72 = 503,928.80/x
3. Step 3: Cross multiply
   885,779x = 1,222,440.72 × 503,928.80
4. Step 4: Simplify right side
   885,779x = 616,023,085,100.74
5. Step 5: Solve for x
   x = 616,023,085,100.74/885,779
6. Step 6: Final answer
   x = 695,459.12