Finding the Fourth Proportional to 1,799.38, 2,480.59 and 1,266.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.38 : 2,480.59 = 1,266.64 : x
2. Step 2: Convert to fraction form
   1,799.38/2,480.59 = 1,266.64/x
3. Step 3: Cross multiply
   1,799.38x = 2,480.59 × 1,266.64
4. Step 4: Simplify right side
   1,799.38x = 3,142,009.90
5. Step 5: Solve for x
   x = 3,142,009.90/1,799.38
6. Step 6: Final answer
   x = 1,746.16