Finding the Fourth Proportional to 1,798.76, 2,479.47 and 1,648.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,798.76 : 2,479.47 = 1,648.10 : x
2. Step 2: Convert to fraction form
   1,798.76/2,479.47 = 1,648.10/x
3. Step 3: Cross multiply
   1,798.76x = 2,479.47 × 1,648.10
4. Step 4: Simplify right side
   1,798.76x = 4,086,414.51
5. Step 5: Solve for x
   x = 4,086,414.51/1,798.76
6. Step 6: Final answer
   x = 2,271.80