Finding the Fourth Proportional to 1,625,443.39, 2,243,087.17 and 890,391.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625,443.39 : 2,243,087.17 = 890,391.79 : x
2. Step 2: Convert to fraction form
   1,625,443.39/2,243,087.17 = 890,391.79/x
3. Step 3: Cross multiply
   1,625,443.39x = 2,243,087.17 × 890,391.79
4. Step 4: Simplify right side
   1,625,443.39x = 1,997,226,400,422.33
5. Step 5: Solve for x
   x = 1,997,226,400,422.33/1,625,443.39
6. Step 6: Final answer
   x = 1,228,727.14