Finding the Fourth Proportional to 2,253,518.30, 3,380,433.43 and 905,682.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253,518.30 : 3,380,433.43 = 905,682.05 : x
2. Step 2: Convert to fraction form
   2,253,518.30/3,380,433.43 = 905,682.05/x
3. Step 3: Cross multiply
   2,253,518.30x = 3,380,433.43 × 905,682.05
4. Step 4: Simplify right side
   2,253,518.30x = 3,061,597,878,770.93
5. Step 5: Solve for x
   x = 3,061,597,878,770.93/2,253,518.30
6. Step 6: Final answer
   x = 1,358,585.76