Finding the Fourth Proportional to 2,884.16, 4,326.72 and 1,152.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.16 : 4,326.72 = 1,152.80 : x
2. Step 2: Convert to fraction form
   2,884.16/4,326.72 = 1,152.80/x
3. Step 3: Cross multiply
   2,884.16x = 4,326.72 × 1,152.80
4. Step 4: Simplify right side
   2,884.16x = 4,987,842.82
5. Step 5: Solve for x
   x = 4,987,842.82/2,884.16
6. Step 6: Final answer
   x = 1,729.39