Finding the Fourth Proportional to 2,139,155.30, 3,206,573.70 and 1,340,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,155.30 : 3,206,573.70 = 1,340,997.50 : x
2. Step 2: Convert to fraction form
   2,139,155.30/3,206,573.70 = 1,340,997.50/x
3. Step 3: Cross multiply
   2,139,155.30x = 3,206,573.70 × 1,340,997.50
4. Step 4: Simplify right side
   2,139,155.30x = 4,300,007,315,265.75
5. Step 5: Solve for x
   x = 4,300,007,315,265.75/2,139,155.30
6. Step 6: Final answer
   x = 2,010,142.66