Finding the Fourth Proportional to 2,389.63, 3,295.02 and 1,602.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.63 : 3,295.02 = 1,602.31 : x
2. Step 2: Convert to fraction form
   2,389.63/3,295.02 = 1,602.31/x
3. Step 3: Cross multiply
   2,389.63x = 3,295.02 × 1,602.31
4. Step 4: Simplify right side
   2,389.63x = 5,279,643.50
5. Step 5: Solve for x
   x = 5,279,643.50/2,389.63
6. Step 6: Final answer
   x = 2,209.40