Finding the Fourth Proportional to 2,616,956.96, 3,925,431.32 and 819,978.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616,956.96 : 3,925,431.32 = 819,978.35 : x
2. Step 2: Convert to fraction form
   2,616,956.96/3,925,431.32 = 819,978.35/x
3. Step 3: Cross multiply
   2,616,956.96x = 3,925,431.32 × 819,978.35
4. Step 4: Simplify right side
   2,616,956.96x = 3,218,768,673,084.87
5. Step 5: Solve for x
   x = 3,218,768,673,084.87/2,616,956.96
6. Step 6: Final answer
   x = 1,229,966.23