Finding the Fourth Proportional to 2,542,238, 3,813,355.80 and 648,978.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,542,238 : 3,813,355.80 = 648,978.80 : x
2. Step 2: Convert to fraction form
   2,542,238/3,813,355.80 = 648,978.80/x
3. Step 3: Cross multiply
   2,542,238x = 3,813,355.80 × 648,978.80
4. Step 4: Simplify right side
   2,542,238x = 2,474,787,071,057.04
5. Step 5: Solve for x
   x = 2,474,787,071,057.04/2,542,238
6. Step 6: Final answer
   x = 973,467.89