Finding the Fourth Proportional to 2,589,444, 3,884,166 and 816,516

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589,444 : 3,884,166 = 816,516 : x
2. Step 2: Convert to fraction form
   2,589,444/3,884,166 = 816,516/x
3. Step 3: Cross multiply
   2,589,444x = 3,884,166 × 816,516
4. Step 4: Simplify right side
   2,589,444x = 3,171,483,685,656
5. Step 5: Solve for x
   x = 3,171,483,685,656/2,589,444
6. Step 6: Final answer
   x = 1,224,774