Finding the Fourth Proportional to 2,147,455.78, 3,221,016.15 and 1,248,324.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,455.78 : 3,221,016.15 = 1,248,324.01 : x
2. Step 2: Convert to fraction form
   2,147,455.78/3,221,016.15 = 1,248,324.01/x
3. Step 3: Cross multiply
   2,147,455.78x = 3,221,016.15 × 1,248,324.01
4. Step 4: Simplify right side
   2,147,455.78x = 4,020,871,796,642.76
5. Step 5: Solve for x
   x = 4,020,871,796,642.76/2,147,455.78
6. Step 6: Final answer
   x = 1,872,388.64