Finding the Fourth Proportional to 2,778.42, 3,833.72 and 1,715.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,778.42 : 3,833.72 = 1,715.34 : x
2. Step 2: Convert to fraction form
   2,778.42/3,833.72 = 1,715.34/x
3. Step 3: Cross multiply
   2,778.42x = 3,833.72 × 1,715.34
4. Step 4: Simplify right side
   2,778.42x = 6,576,124.69
5. Step 5: Solve for x
   x = 6,576,124.69/2,778.42
6. Step 6: Final answer
   x = 2,366.86