Finding the Fourth Proportional to 2,825,931.57, 3,899,887.89 and 1,618,940.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825,931.57 : 3,899,887.89 = 1,618,940.85 : x
2. Step 2: Convert to fraction form
   2,825,931.57/3,899,887.89 = 1,618,940.85/x
3. Step 3: Cross multiply
   2,825,931.57x = 3,899,887.89 × 1,618,940.85
4. Step 4: Simplify right side
   2,825,931.57x = 6,313,687,815,541.31
5. Step 5: Solve for x
   x = 6,313,687,815,541.31/2,825,931.57
6. Step 6: Final answer
   x = 2,234,196.99