Finding the Fourth Proportional to 2,942.76, 4,405.60 and 2,291.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.76 : 4,405.60 = 2,291.52 : x
2. Step 2: Convert to fraction form
   2,942.76/4,405.60 = 2,291.52/x
3. Step 3: Cross multiply
   2,942.76x = 4,405.60 × 2,291.52
4. Step 4: Simplify right side
   2,942.76x = 10,095,520.51
5. Step 5: Solve for x
   x = 10,095,520.51/2,942.76
6. Step 6: Final answer
   x = 3,430.63