Finding the Fourth Proportional to 2,384.00, 3,289.83 and 1,389.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.00 : 3,289.83 = 1,389.32 : x
2. Step 2: Convert to fraction form
   2,384.00/3,289.83 = 1,389.32/x
3. Step 3: Cross multiply
   2,384.00x = 3,289.83 × 1,389.32
4. Step 4: Simplify right side
   2,384.00x = 4,570,629.63
5. Step 5: Solve for x
   x = 4,570,629.63/2,384.00
6. Step 6: Final answer
   x = 1,917.21