Finding the Fourth Proportional to 2,942.68, 4,402.38 and 2,279.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.68 : 4,402.38 = 2,279.32 : x
2. Step 2: Convert to fraction form
   2,942.68/4,402.38 = 2,279.32/x
3. Step 3: Cross multiply
   2,942.68x = 4,402.38 × 2,279.32
4. Step 4: Simplify right side
   2,942.68x = 10,034,432.78
5. Step 5: Solve for x
   x = 10,034,432.78/2,942.68
6. Step 6: Final answer
   x = 3,409.96