Finding the Fourth Proportional to 2,507,171.40, 3,759,345 and 800,913.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507,171.40 : 3,759,345 = 800,913.96 : x
2. Step 2: Convert to fraction form
   2,507,171.40/3,759,345 = 800,913.96/x
3. Step 3: Cross multiply
   2,507,171.40x = 3,759,345 × 800,913.96
4. Step 4: Simplify right side
   2,507,171.40x = 3,010,911,890,956.20
5. Step 5: Solve for x
   x = 3,010,911,890,956.20/2,507,171.40
6. Step 6: Final answer
   x = 1,200,919.85