Finding the Fourth Proportional to 1,806,460.15, 2,492,685.89 and 990,449.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806,460.15 : 2,492,685.89 = 990,449.10 : x
2. Step 2: Convert to fraction form
   1,806,460.15/2,492,685.89 = 990,449.10/x
3. Step 3: Cross multiply
   1,806,460.15x = 2,492,685.89 × 990,449.10
4. Step 4: Simplify right side
   1,806,460.15x = 2,468,878,496,333.20
5. Step 5: Solve for x
   x = 2,468,878,496,333.20/1,806,460.15
6. Step 6: Final answer
   x = 1,366,694.14