Finding the Fourth Proportional to 2,105,301.60, 3,158,127.36 and 842,440.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,301.60 : 3,158,127.36 = 842,440.32 : x
2. Step 2: Convert to fraction form
   2,105,301.60/3,158,127.36 = 842,440.32/x
3. Step 3: Cross multiply
   2,105,301.60x = 3,158,127.36 × 842,440.32
4. Step 4: Simplify right side
   2,105,301.60x = 2,660,533,823,759.15
5. Step 5: Solve for x
   x = 2,660,533,823,759.15/2,105,301.60
6. Step 6: Final answer
   x = 1,263,730.49