Finding the Fourth Proportional to 2,268,294.56, 3,402,072.78 and 920,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268,294.56 : 3,402,072.78 = 920,402.72 : x
2. Step 2: Convert to fraction form
   2,268,294.56/3,402,072.78 = 920,402.72/x
3. Step 3: Cross multiply
   2,268,294.56x = 3,402,072.78 × 920,402.72
4. Step 4: Simplify right side
   2,268,294.56x = 3,131,277,040,349.96
5. Step 5: Solve for x
   x = 3,131,277,040,349.96/2,268,294.56
6. Step 6: Final answer
   x = 1,380,454.33