Finding the Fourth Proportional to 2,288.22, 3,157.74 and 1,279.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.22 : 3,157.74 = 1,279.98 : x
2. Step 2: Convert to fraction form
   2,288.22/3,157.74 = 1,279.98/x
3. Step 3: Cross multiply
   2,288.22x = 3,157.74 × 1,279.98
4. Step 4: Simplify right side
   2,288.22x = 4,041,844.05
5. Step 5: Solve for x
   x = 4,041,844.05/2,288.22
6. Step 6: Final answer
   x = 1,766.37