Finding the Fourth Proportional to 2,140,061.22, 3,209,158.62 and 809,432.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,061.22 : 3,209,158.62 = 809,432.10 : x
2. Step 2: Convert to fraction form
   2,140,061.22/3,209,158.62 = 809,432.10/x
3. Step 3: Cross multiply
   2,140,061.22x = 3,209,158.62 × 809,432.10
4. Step 4: Simplify right side
   2,140,061.22x = 2,597,596,001,019.70
5. Step 5: Solve for x
   x = 2,597,596,001,019.70/2,140,061.22
6. Step 6: Final answer
   x = 1,213,795.18