Finding the Fourth Proportional to 2,157,550.61, 3,235,484.52 and 808,978.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,550.61 : 3,235,484.52 = 808,978.37 : x
2. Step 2: Convert to fraction form
   2,157,550.61/3,235,484.52 = 808,978.37/x
3. Step 3: Cross multiply
   2,157,550.61x = 3,235,484.52 × 808,978.37
4. Step 4: Simplify right side
   2,157,550.61x = 2,617,436,993,149.83
5. Step 5: Solve for x
   x = 2,617,436,993,149.83/2,157,550.61
6. Step 6: Final answer
   x = 1,213,152.07