Finding the Fourth Proportional to 1,789.86, 2,682.24 and 1,398.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.86 : 2,682.24 = 1,398.06 : x
2. Step 2: Convert to fraction form
   1,789.86/2,682.24 = 1,398.06/x
3. Step 3: Cross multiply
   1,789.86x = 2,682.24 × 1,398.06
4. Step 4: Simplify right side
   1,789.86x = 3,749,932.45
5. Step 5: Solve for x
   x = 3,749,932.45/1,789.86
6. Step 6: Final answer
   x = 2,095.10