Finding the Fourth Proportional to 2,428,873.27, 3,644,570.81 and 990,611.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428,873.27 : 3,644,570.81 = 990,611.86 : x
2. Step 2: Convert to fraction form
   2,428,873.27/3,644,570.81 = 990,611.86/x
3. Step 3: Cross multiply
   2,428,873.27x = 3,644,570.81 × 990,611.86
4. Step 4: Simplify right side
   2,428,873.27x = 3,610,355,045,819.89
5. Step 5: Solve for x
   x = 3,610,355,045,819.89/2,428,873.27
6. Step 6: Final answer
   x = 1,486,432.04