Finding the Fourth Proportional to 2,384.52, 3,578.40 and 1,289.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.52 : 3,578.40 = 1,289.00 : x
2. Step 2: Convert to fraction form
   2,384.52/3,578.40 = 1,289.00/x
3. Step 3: Cross multiply
   2,384.52x = 3,578.40 × 1,289.00
4. Step 4: Simplify right side
   2,384.52x = 4,612,539.71
5. Step 5: Solve for x
   x = 4,612,539.71/2,384.52
6. Step 6: Final answer
   x = 1,934.37