Finding the Fourth Proportional to 2,147,900.77, 3,222,743.37 and 869,412.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,900.77 : 3,222,743.37 = 869,412.01 : x
2. Step 2: Convert to fraction form
   2,147,900.77/3,222,743.37 = 869,412.01/x
3. Step 3: Cross multiply
   2,147,900.77x = 3,222,743.37 × 869,412.01
4. Step 4: Simplify right side
   2,147,900.77x = 2,801,891,791,025.87
5. Step 5: Solve for x
   x = 2,801,891,791,025.87/2,147,900.77
6. Step 6: Final answer
   x = 1,304,479.16