Finding the Fourth Proportional to 1,819,806.24, 2,727,495.60 and 1,287,480.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819,806.24 : 2,727,495.60 = 1,287,480.72 : x
2. Step 2: Convert to fraction form
   1,819,806.24/2,727,495.60 = 1,287,480.72/x
3. Step 3: Cross multiply
   1,819,806.24x = 2,727,495.60 × 1,287,480.72
4. Step 4: Simplify right side
   1,819,806.24x = 3,511,597,998,884.83
5. Step 5: Solve for x
   x = 3,511,597,998,884.83/1,819,806.24
6. Step 6: Final answer
   x = 1,929,654.88