Finding the Fourth Proportional to 2,158,546.78, 3,237,255.94 and 641,821.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,546.78 : 3,237,255.94 = 641,821.24 : x
2. Step 2: Convert to fraction form
   2,158,546.78/3,237,255.94 = 641,821.24/x
3. Step 3: Cross multiply
   2,158,546.78x = 3,237,255.94 × 641,821.24
4. Step 4: Simplify right side
   2,158,546.78x = 2,077,739,621,608.17
5. Step 5: Solve for x
   x = 2,077,739,621,608.17/2,158,546.78
6. Step 6: Final answer
   x = 962,564.09