Finding the Fourth Proportional to 1,429.24, 2,132.78 and 1,265.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.24 : 2,132.78 = 1,265.22 : x
2. Step 2: Convert to fraction form
   1,429.24/2,132.78 = 1,265.22/x
3. Step 3: Cross multiply
   1,429.24x = 2,132.78 × 1,265.22
4. Step 4: Simplify right side
   1,429.24x = 2,698,435.91
5. Step 5: Solve for x
   x = 2,698,435.91/1,429.24
6. Step 6: Final answer
   x = 1,888.02