Finding the Fourth Proportional to 1,421.02, 1,961.01 and 791.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.02 : 1,961.01 = 791.54 : x
2. Step 2: Convert to fraction form
   1,421.02/1,961.01 = 791.54/x
3. Step 3: Cross multiply
   1,421.02x = 1,961.01 × 791.54
4. Step 4: Simplify right side
   1,421.02x = 1,552,217.86
5. Step 5: Solve for x
   x = 1,552,217.86/1,421.02
6. Step 6: Final answer
   x = 1,092.33