Finding the Fourth Proportional to 2,231,120.46, 3,078,965.55 and 1,212,525.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,120.46 : 3,078,965.55 = 1,212,525.42 : x
2. Step 2: Convert to fraction form
   2,231,120.46/3,078,965.55 = 1,212,525.42/x
3. Step 3: Cross multiply
   2,231,120.46x = 3,078,965.55 × 1,212,525.42
4. Step 4: Simplify right side
   2,231,120.46x = 3,733,323,996,679.28
5. Step 5: Solve for x
   x = 3,733,323,996,679.28/2,231,120.46
6. Step 6: Final answer
   x = 1,673,295.58