Finding the Fourth Proportional to 1,659.62, 2,491.56 and 1,035.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.62 : 2,491.56 = 1,035.89 : x
2. Step 2: Convert to fraction form
   1,659.62/2,491.56 = 1,035.89/x
3. Step 3: Cross multiply
   1,659.62x = 2,491.56 × 1,035.89
4. Step 4: Simplify right side
   1,659.62x = 2,580,982.09
5. Step 5: Solve for x
   x = 2,580,982.09/1,659.62
6. Step 6: Final answer
   x = 1,555.16