Finding the Fourth Proportional to 2,821,300.57, 3,894,586.13 and 1,904,770.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821,300.57 : 3,894,586.13 = 1,904,770.72 : x
2. Step 2: Convert to fraction form
   2,821,300.57/3,894,586.13 = 1,904,770.72/x
3. Step 3: Cross multiply
   2,821,300.57x = 3,894,586.13 × 1,904,770.72
4. Step 4: Simplify right side
   2,821,300.57x = 7,418,293,597,945.33
5. Step 5: Solve for x
   x = 7,418,293,597,945.33/2,821,300.57
6. Step 6: Final answer
   x = 2,629,387.91