Finding the Fourth Proportional to 1,791.86, 2,688.54 and 1,098.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791.86 : 2,688.54 = 1,098.54 : x
2. Step 2: Convert to fraction form
   1,791.86/2,688.54 = 1,098.54/x
3. Step 3: Cross multiply
   1,791.86x = 2,688.54 × 1,098.54
4. Step 4: Simplify right side
   1,791.86x = 2,953,468.73
5. Step 5: Solve for x
   x = 2,953,468.73/1,791.86
6. Step 6: Final answer
   x = 1,648.27