Finding the Fourth Proportional to 2,884.57, 4,327.27 and 909.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.57 : 4,327.27 = 909.53 : x
2. Step 2: Convert to fraction form
   2,884.57/4,327.27 = 909.53/x
3. Step 3: Cross multiply
   2,884.57x = 4,327.27 × 909.53
4. Step 4: Simplify right side
   2,884.57x = 3,935,779.32
5. Step 5: Solve for x
   x = 3,935,779.32/2,884.57
6. Step 6: Final answer
   x = 1,364.42