Finding the Fourth Proportional to 2,245,785.89, 3,099,192.59 and 1,227,190.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,245,785.89 : 3,099,192.59 = 1,227,190.64 : x
2. Step 2: Convert to fraction form
   2,245,785.89/3,099,192.59 = 1,227,190.64/x
3. Step 3: Cross multiply
   2,245,785.89x = 3,099,192.59 × 1,227,190.64
4. Step 4: Simplify right side
   2,245,785.89x = 3,803,300,131,869.40
5. Step 5: Solve for x
   x = 3,803,300,131,869.40/2,245,785.89
6. Step 6: Final answer
   x = 1,693,527.49