Finding the Fourth Proportional to 2,830,328.83, 4,245,530.15 and 808,638.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830,328.83 : 4,245,530.15 = 808,638.70 : x
2. Step 2: Convert to fraction form
   2,830,328.83/4,245,530.15 = 808,638.70/x
3. Step 3: Cross multiply
   2,830,328.83x = 4,245,530.15 × 808,638.70
4. Step 4: Simplify right side
   2,830,328.83x = 3,433,099,981,306.81
5. Step 5: Solve for x
   x = 3,433,099,981,306.81/2,830,328.83
6. Step 6: Final answer
   x = 1,212,968.59