Finding the Fourth Proportional to 3,300.78, 4,557.15 and 2,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.78 : 4,557.15 = 2,059.50 : x
2. Step 2: Convert to fraction form
   3,300.78/4,557.15 = 2,059.50/x
3. Step 3: Cross multiply
   3,300.78x = 4,557.15 × 2,059.50
4. Step 4: Simplify right side
   3,300.78x = 9,385,450.43
5. Step 5: Solve for x
   x = 9,385,450.43/3,300.78
6. Step 6: Final answer
   x = 2,843.40