Finding the Fourth Proportional to 1,522.98, 2,279.59 and 791.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.98 : 2,279.59 = 791.55 : x
2. Step 2: Convert to fraction form
   1,522.98/2,279.59 = 791.55/x
3. Step 3: Cross multiply
   1,522.98x = 2,279.59 × 791.55
4. Step 4: Simplify right side
   1,522.98x = 1,804,409.46
5. Step 5: Solve for x
   x = 1,804,409.46/1,522.98
6. Step 6: Final answer
   x = 1,184.79