Finding the Fourth Proportional to 2,787.50, 3,846.72 and 1,608.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,787.50 : 3,846.72 = 1,608.55 : x
2. Step 2: Convert to fraction form
   2,787.50/3,846.72 = 1,608.55/x
3. Step 3: Cross multiply
   2,787.50x = 3,846.72 × 1,608.55
4. Step 4: Simplify right side
   2,787.50x = 6,187,631.84
5. Step 5: Solve for x
   x = 6,187,631.84/2,787.50
6. Step 6: Final answer
   x = 2,219.78