Finding the Fourth Proportional to 2,617,659.56, 3,926,375.10 and 820,502

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617,659.56 : 3,926,375.10 = 820,502 : x
2. Step 2: Convert to fraction form
   2,617,659.56/3,926,375.10 = 820,502/x
3. Step 3: Cross multiply
   2,617,659.56x = 3,926,375.10 × 820,502
4. Step 4: Simplify right side
   2,617,659.56x = 3,221,598,622,300.20
5. Step 5: Solve for x
   x = 3,221,598,622,300.20/2,617,659.56
6. Step 6: Final answer
   x = 1,230,717.19