Finding the Fourth Proportional to 2,797.72, 4,193.76 and 1,406.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,797.72 : 4,193.76 = 1,406.86 : x
2. Step 2: Convert to fraction form
   2,797.72/4,193.76 = 1,406.86/x
3. Step 3: Cross multiply
   2,797.72x = 4,193.76 × 1,406.86
4. Step 4: Simplify right side
   2,797.72x = 5,900,033.19
5. Step 5: Solve for x
   x = 5,900,033.19/2,797.72
6. Step 6: Final answer
   x = 2,108.87