Finding the Fourth Proportional to 2,061.20, 3,093.60 and 1,650.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.20 : 3,093.60 = 1,650.80 : x
2. Step 2: Convert to fraction form
   2,061.20/3,093.60 = 1,650.80/x
3. Step 3: Cross multiply
   2,061.20x = 3,093.60 × 1,650.80
4. Step 4: Simplify right side
   2,061.20x = 5,106,914.88
5. Step 5: Solve for x
   x = 5,106,914.88/2,061.20
6. Step 6: Final answer
   x = 2,477.64