Finding the Fourth Proportional to 3,519.59, 5,279.67 and 922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,519.59 : 5,279.67 = 922.50 : x
2. Step 2: Convert to fraction form
   3,519.59/5,279.67 = 922.50/x
3. Step 3: Cross multiply
   3,519.59x = 5,279.67 × 922.50
4. Step 4: Simplify right side
   3,519.59x = 4,870,495.58
5. Step 5: Solve for x
   x = 4,870,495.58/3,519.59
6. Step 6: Final answer
   x = 1,383.83