Finding the Fourth Proportional to 1,477.08, 2,205.06 and 1,425.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.08 : 2,205.06 = 1,425.78 : x
2. Step 2: Convert to fraction form
   1,477.08/2,205.06 = 1,425.78/x
3. Step 3: Cross multiply
   1,477.08x = 2,205.06 × 1,425.78
4. Step 4: Simplify right side
   1,477.08x = 3,143,930.45
5. Step 5: Solve for x
   x = 3,143,930.45/1,477.08
6. Step 6: Final answer
   x = 2,128.48