Finding the Fourth Proportional to 1,798.72, 2,480.64 and 1,326.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,798.72 : 2,480.64 = 1,326.72 : x
2. Step 2: Convert to fraction form
   1,798.72/2,480.64 = 1,326.72/x
3. Step 3: Cross multiply
   1,798.72x = 2,480.64 × 1,326.72
4. Step 4: Simplify right side
   1,798.72x = 3,291,114.70
5. Step 5: Solve for x
   x = 3,291,114.70/1,798.72
6. Step 6: Final answer
   x = 1,829.70