Finding the Fourth Proportional to 2,308,636.72, 3,185,857.56 and 1,290,049.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,636.72 : 3,185,857.56 = 1,290,049.84 : x
2. Step 2: Convert to fraction form
   2,308,636.72/3,185,857.56 = 1,290,049.84/x
3. Step 3: Cross multiply
   2,308,636.72x = 3,185,857.56 × 1,290,049.84
4. Step 4: Simplify right side
   2,308,636.72x = 4,109,915,035,540.79
5. Step 5: Solve for x
   x = 4,109,915,035,540.79/2,308,636.72
6. Step 6: Final answer
   x = 1,780,234.63