Finding the Fourth Proportional to 1,054.30, 1,454.06 and 791.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.30 : 1,454.06 = 791.86 : x
2. Step 2: Convert to fraction form
   1,054.30/1,454.06 = 791.86/x
3. Step 3: Cross multiply
   1,054.30x = 1,454.06 × 791.86
4. Step 4: Simplify right side
   1,054.30x = 1,151,411.95
5. Step 5: Solve for x
   x = 1,151,411.95/1,054.30
6. Step 6: Final answer
   x = 1,092.11