Finding the Fourth Proportional to 2,356,986.56, 3,536,377.49 and 820,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356,986.56 : 3,536,377.49 = 820,152.72 : x
2. Step 2: Convert to fraction form
   2,356,986.56/3,536,377.49 = 820,152.72/x
3. Step 3: Cross multiply
   2,356,986.56x = 3,536,377.49 × 820,152.72
4. Step 4: Simplify right side
   2,356,986.56x = 2,900,369,617,370.27
5. Step 5: Solve for x
   x = 2,900,369,617,370.27/2,356,986.56
6. Step 6: Final answer
   x = 1,230,541.43