Finding the Fourth Proportional to 1,806,443.88, 2,492,895.99 and 990,653.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806,443.88 : 2,492,895.99 = 990,653.29 : x
2. Step 2: Convert to fraction form
   1,806,443.88/2,492,895.99 = 990,653.29/x
3. Step 3: Cross multiply
   1,806,443.88x = 2,492,895.99 × 990,653.29
4. Step 4: Simplify right side
   1,806,443.88x = 2,469,595,611,604.02
5. Step 5: Solve for x
   x = 2,469,595,611,604.02/1,806,443.88
6. Step 6: Final answer
   x = 1,367,103.43