Finding the Fourth Proportional to 1,981,890.37, 2,970,710.32 and 1,298,519.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981,890.37 : 2,970,710.32 = 1,298,519.09 : x
2. Step 2: Convert to fraction form
   1,981,890.37/2,970,710.32 = 1,298,519.09/x
3. Step 3: Cross multiply
   1,981,890.37x = 2,970,710.32 × 1,298,519.09
4. Step 4: Simplify right side
   1,981,890.37x = 3,857,524,061,380.01
5. Step 5: Solve for x
   x = 3,857,524,061,380.01/1,981,890.37
6. Step 6: Final answer
   x = 1,946,386.20