Finding the Fourth Proportional to 2,105,057.88, 3,157,976.22 and 666,103.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,057.88 : 3,157,976.22 = 666,103.56 : x
2. Step 2: Convert to fraction form
   2,105,057.88/3,157,976.22 = 666,103.56/x
3. Step 3: Cross multiply
   2,105,057.88x = 3,157,976.22 × 666,103.56
4. Step 4: Simplify right side
   2,105,057.88x = 2,103,539,202,537.34
5. Step 5: Solve for x
   x = 2,103,539,202,537.34/2,105,057.88
6. Step 6: Final answer
   x = 999,278.56