Finding the Fourth Proportional to 3,510.15, 5,265.21 and 1,429.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.15 : 5,265.21 = 1,429.69 : x
2. Step 2: Convert to fraction form
   3,510.15/5,265.21 = 1,429.69/x
3. Step 3: Cross multiply
   3,510.15x = 5,265.21 × 1,429.69
4. Step 4: Simplify right side
   3,510.15x = 7,527,584.61
5. Step 5: Solve for x
   x = 7,527,584.61/3,510.15
6. Step 6: Final answer
   x = 2,144.52