Finding the Fourth Proportional to 2,628,222.72, 3,626,947.28 and 1,420,998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628,222.72 : 3,626,947.28 = 1,420,998.72 : x
2. Step 2: Convert to fraction form
   2,628,222.72/3,626,947.28 = 1,420,998.72/x
3. Step 3: Cross multiply
   2,628,222.72x = 3,626,947.28 × 1,420,998.72
4. Step 4: Simplify right side
   2,628,222.72x = 5,153,887,442,387.48
5. Step 5: Solve for x
   x = 5,153,887,442,387.48/2,628,222.72
6. Step 6: Final answer
   x = 1,960,978.19