Finding the Fourth Proportional to 1,826.77, 2,739.89 and 672.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.77 : 2,739.89 = 672.25 : x
2. Step 2: Convert to fraction form
   1,826.77/2,739.89 = 672.25/x
3. Step 3: Cross multiply
   1,826.77x = 2,739.89 × 672.25
4. Step 4: Simplify right side
   1,826.77x = 1,841,887.69
5. Step 5: Solve for x
   x = 1,841,887.69/1,826.77
6. Step 6: Final answer
   x = 1,008.28