Finding the Fourth Proportional to 2,953.72, 4,429.02 and 1,309.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.72 : 4,429.02 = 1,309.55 : x
2. Step 2: Convert to fraction form
   2,953.72/4,429.02 = 1,309.55/x
3. Step 3: Cross multiply
   2,953.72x = 4,429.02 × 1,309.55
4. Step 4: Simplify right side
   2,953.72x = 5,800,023.14
5. Step 5: Solve for x
   x = 5,800,023.14/2,953.72
6. Step 6: Final answer
   x = 1,963.64