Finding the Fourth Proportional to 2,616,978.72, 3,925,466.64 and 820,003.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616,978.72 : 3,925,466.64 = 820,003.44 : x
2. Step 2: Convert to fraction form
   2,616,978.72/3,925,466.64 = 820,003.44/x
3. Step 3: Cross multiply
   2,616,978.72x = 3,925,466.64 × 820,003.44
4. Step 4: Simplify right side
   2,616,978.72x = 3,218,896,148,405.24
5. Step 5: Solve for x
   x = 3,218,896,148,405.24/2,616,978.72
6. Step 6: Final answer
   x = 1,230,004.71