Finding the Fourth Proportional to 2,049.86, 2,828.79 and 1,210.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,049.86 : 2,828.79 = 1,210.60 : x
2. Step 2: Convert to fraction form
   2,049.86/2,828.79 = 1,210.60/x
3. Step 3: Cross multiply
   2,049.86x = 2,828.79 × 1,210.60
4. Step 4: Simplify right side
   2,049.86x = 3,424,533.17
5. Step 5: Solve for x
   x = 3,424,533.17/2,049.86
6. Step 6: Final answer
   x = 1,670.62