Finding the Fourth Proportional to 2,389,670.70, 3,584,007.90 and 874,067.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389,670.70 : 3,584,007.90 = 874,067.55 : x
2. Step 2: Convert to fraction form
   2,389,670.70/3,584,007.90 = 874,067.55/x
3. Step 3: Cross multiply
   2,389,670.70x = 3,584,007.90 × 874,067.55
4. Step 4: Simplify right side
   2,389,670.70x = 3,132,665,004,333.65
5. Step 5: Solve for x
   x = 3,132,665,004,333.65/2,389,670.70
6. Step 6: Final answer
   x = 1,310,919.12