Finding the Fourth Proportional to 1,053.90, 1,456.38 and 791.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.90 : 1,456.38 = 791.46 : x
2. Step 2: Convert to fraction form
   1,053.90/1,456.38 = 791.46/x
3. Step 3: Cross multiply
   1,053.90x = 1,456.38 × 791.46
4. Step 4: Simplify right side
   1,053.90x = 1,152,666.51
5. Step 5: Solve for x
   x = 1,152,666.51/1,053.90
6. Step 6: Final answer
   x = 1,093.72