Finding the Fourth Proportional to 1,101.48, 1,647.90 and 793.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.48 : 1,647.90 = 793.92 : x
2. Step 2: Convert to fraction form
   1,101.48/1,647.90 = 793.92/x
3. Step 3: Cross multiply
   1,101.48x = 1,647.90 × 793.92
4. Step 4: Simplify right side
   1,101.48x = 1,308,300.77
5. Step 5: Solve for x
   x = 1,308,300.77/1,101.48
6. Step 6: Final answer
   x = 1,187.77