Finding the Fourth Proportional to 2,884.40, 3,979.50 and 1,764.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.40 : 3,979.50 = 1,764.72 : x
2. Step 2: Convert to fraction form
   2,884.40/3,979.50 = 1,764.72/x
3. Step 3: Cross multiply
   2,884.40x = 3,979.50 × 1,764.72
4. Step 4: Simplify right side
   2,884.40x = 7,022,703.24
5. Step 5: Solve for x
   x = 7,022,703.24/2,884.40
6. Step 6: Final answer
   x = 2,434.72