Finding the Fourth Proportional to 1,605.30, 2,404.35 and 1,394.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.30 : 2,404.35 = 1,394.37 : x
2. Step 2: Convert to fraction form
   1,605.30/2,404.35 = 1,394.37/x
3. Step 3: Cross multiply
   1,605.30x = 2,404.35 × 1,394.37
4. Step 4: Simplify right side
   1,605.30x = 3,352,553.51
5. Step 5: Solve for x
   x = 3,352,553.51/1,605.30
6. Step 6: Final answer
   x = 2,088.43