Finding the Fourth Proportional to 1,605.48, 2,214.72 and 1,081.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.48 : 2,214.72 = 1,081.68 : x
2. Step 2: Convert to fraction form
   1,605.48/2,214.72 = 1,081.68/x
3. Step 3: Cross multiply
   1,605.48x = 2,214.72 × 1,081.68
4. Step 4: Simplify right side
   1,605.48x = 2,395,618.33
5. Step 5: Solve for x
   x = 2,395,618.33/1,605.48
6. Step 6: Final answer
   x = 1,492.15