Finding the Fourth Proportional to 1,429.92, 1,971.54 and 1,036.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.92 : 1,971.54 = 1,036.80 : x
2. Step 2: Convert to fraction form
   1,429.92/1,971.54 = 1,036.80/x
3. Step 3: Cross multiply
   1,429.92x = 1,971.54 × 1,036.80
4. Step 4: Simplify right side
   1,429.92x = 2,044,092.67
5. Step 5: Solve for x
   x = 2,044,092.67/1,429.92
6. Step 6: Final answer
   x = 1,429.52