Finding the Fourth Proportional to 1,601.64, 2,404.08 and 1,081.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.64 : 2,404.08 = 1,081.62 : x
2. Step 2: Convert to fraction form
   1,601.64/2,404.08 = 1,081.62/x
3. Step 3: Cross multiply
   1,601.64x = 2,404.08 × 1,081.62
4. Step 4: Simplify right side
   1,601.64x = 2,600,301.01
5. Step 5: Solve for x
   x = 2,600,301.01/1,601.64
6. Step 6: Final answer
   x = 1,623.52