Finding the Fourth Proportional to 1,615,212.27, 2,229,007.88 and 890,085.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,212.27 : 2,229,007.88 = 890,085.94 : x
2. Step 2: Convert to fraction form
   1,615,212.27/2,229,007.88 = 890,085.94/x
3. Step 3: Cross multiply
   1,615,212.27x = 2,229,007.88 × 890,085.94
4. Step 4: Simplify right side
   1,615,212.27x = 1,984,008,578,936.45
5. Step 5: Solve for x
   x = 1,984,008,578,936.45/1,615,212.27
6. Step 6: Final answer
   x = 1,228,326.83