Finding the Fourth Proportional to 1,626,308.50, 2,244,305.73 and 990,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626,308.50 : 2,244,305.73 = 990,404.50 : x
2. Step 2: Convert to fraction form
   1,626,308.50/2,244,305.73 = 990,404.50/x
3. Step 3: Cross multiply
   1,626,308.50x = 2,244,305.73 × 990,404.50
4. Step 4: Simplify right side
   1,626,308.50x = 2,222,770,494,367.79
5. Step 5: Solve for x
   x = 2,222,770,494,367.79/1,626,308.50
6. Step 6: Final answer
   x = 1,366,758.21