Finding the Fourth Proportional to 2,227,910.12, 3,338,871.72 and 1,215,515.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227,910.12 : 3,338,871.72 = 1,215,515.01 : x
2. Step 2: Convert to fraction form
   2,227,910.12/3,338,871.72 = 1,215,515.01/x
3. Step 3: Cross multiply
   2,227,910.12x = 3,338,871.72 × 1,215,515.01
4. Step 4: Simplify right side
   2,227,910.12x = 4,058,448,692,124.52
5. Step 5: Solve for x
   x = 4,058,448,692,124.52/2,227,910.12
6. Step 6: Final answer
   x = 1,821,639.33