Finding the Fourth Proportional to 1,625,456.10, 2,243,104.71 and 890,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625,456.10 : 2,243,104.71 = 890,404.50 : x
2. Step 2: Convert to fraction form
   1,625,456.10/2,243,104.71 = 890,404.50/x
3. Step 3: Cross multiply
   1,625,456.10x = 2,243,104.71 × 890,404.50
4. Step 4: Simplify right side
   1,625,456.10x = 1,997,270,527,755.20
5. Step 5: Solve for x
   x = 1,997,270,527,755.20/1,625,456.10
6. Step 6: Final answer
   x = 1,228,744.68