Finding the Fourth Proportional to 2,932.83, 4,397.67 and 1,287.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,932.83 : 4,397.67 = 1,287.45 : x
2. Step 2: Convert to fraction form
   2,932.83/4,397.67 = 1,287.45/x
3. Step 3: Cross multiply
   2,932.83x = 4,397.67 × 1,287.45
4. Step 4: Simplify right side
   2,932.83x = 5,661,780.24
5. Step 5: Solve for x
   x = 5,661,780.24/2,932.83
6. Step 6: Final answer
   x = 1,930.48