Finding the Fourth Proportional to 2,384.15, 3,577.25 and 1,289.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.15 : 3,577.25 = 1,289.28 : x
2. Step 2: Convert to fraction form
   2,384.15/3,577.25 = 1,289.28/x
3. Step 3: Cross multiply
   2,384.15x = 3,577.25 × 1,289.28
4. Step 4: Simplify right side
   2,384.15x = 4,612,070.43
5. Step 5: Solve for x
   x = 4,612,070.43/2,384.15
6. Step 6: Final answer
   x = 1,934.48