Finding the Fourth Proportional to 2,139,147.30, 3,206,561.70 and 1,340,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,147.30 : 3,206,561.70 = 1,340,989.50 : x
2. Step 2: Convert to fraction form
   2,139,147.30/3,206,561.70 = 1,340,989.50/x
3. Step 3: Cross multiply
   2,139,147.30x = 3,206,561.70 × 1,340,989.50
4. Step 4: Simplify right side
   2,139,147.30x = 4,299,965,570,802.15
5. Step 5: Solve for x
   x = 4,299,965,570,802.15/2,139,147.30
6. Step 6: Final answer
   x = 2,010,130.66