Finding the Fourth Proportional to 2,139,065.14, 3,209,002.32 and 859,772.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,065.14 : 3,209,002.32 = 859,772.20 : x
2. Step 2: Convert to fraction form
   2,139,065.14/3,209,002.32 = 859,772.20/x
3. Step 3: Cross multiply
   2,139,065.14x = 3,209,002.32 × 859,772.20
4. Step 4: Simplify right side
   2,139,065.14x = 2,759,010,984,471.50
5. Step 5: Solve for x
   x = 2,759,010,984,471.50/2,139,065.14
6. Step 6: Final answer
   x = 1,289,820.93