Finding the Fourth Proportional to 5,406.28, 8,108.34 and 1,510.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,406.28 : 8,108.34 = 1,510.72 : x
2. Step 2: Convert to fraction form
   5,406.28/8,108.34 = 1,510.72/x
3. Step 3: Cross multiply
   5,406.28x = 8,108.34 × 1,510.72
4. Step 4: Simplify right side
   5,406.28x = 12,249,405.47
5. Step 5: Solve for x
   x = 12,249,405.47/5,406.28
6. Step 6: Final answer
   x = 2,265.77