Finding the Fourth Proportional to 2,389,890.28, 3,296,541.78 and 1,422,298.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389,890.28 : 3,296,541.78 = 1,422,298.12 : x
2. Step 2: Convert to fraction form
   2,389,890.28/3,296,541.78 = 1,422,298.12/x
3. Step 3: Cross multiply
   2,389,890.28x = 3,296,541.78 × 1,422,298.12
4. Step 4: Simplify right side
   2,389,890.28x = 4,688,665,176,195.45
5. Step 5: Solve for x
   x = 4,688,665,176,195.45/2,389,890.28
6. Step 6: Final answer
   x = 1,961,874.66