Finding the Fourth Proportional to 1,789.30, 2,682.44 and 1,242.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.30 : 2,682.44 = 1,242.54 : x
2. Step 2: Convert to fraction form
   1,789.30/2,682.44 = 1,242.54/x
3. Step 3: Cross multiply
   1,789.30x = 2,682.44 × 1,242.54
4. Step 4: Simplify right side
   1,789.30x = 3,333,039.00
5. Step 5: Solve for x
   x = 3,333,039.00/1,789.30
6. Step 6: Final answer
   x = 1,862.76