Finding the Fourth Proportional to 1,479.23, 2,205.57 and 1,425.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.23 : 2,205.57 = 1,425.87 : x
2. Step 2: Convert to fraction form
   1,479.23/2,205.57 = 1,425.87/x
3. Step 3: Cross multiply
   1,479.23x = 2,205.57 × 1,425.87
4. Step 4: Simplify right side
   1,479.23x = 3,144,856.10
5. Step 5: Solve for x
   x = 3,144,856.10/1,479.23
6. Step 6: Final answer
   x = 2,126.02