Finding the Fourth Proportional to 2,163,105.72, 3,242,908.89 and 1,321,373.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,163,105.72 : 3,242,908.89 = 1,321,373.16 : x
2. Step 2: Convert to fraction form
   2,163,105.72/3,242,908.89 = 1,321,373.16/x
3. Step 3: Cross multiply
   2,163,105.72x = 3,242,908.89 × 1,321,373.16
4. Step 4: Simplify right side
   2,163,105.72x = 4,285,092,767,571.39
5. Step 5: Solve for x
   x = 4,285,092,767,571.39/2,163,105.72
6. Step 6: Final answer
   x = 1,980,990.91