Finding the Fourth Proportional to 1,662.59, 2,494.35 and 725.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.59 : 2,494.35 = 725.62 : x
2. Step 2: Convert to fraction form
   1,662.59/2,494.35 = 725.62/x
3. Step 3: Cross multiply
   1,662.59x = 2,494.35 × 725.62
4. Step 4: Simplify right side
   1,662.59x = 1,809,934.15
5. Step 5: Solve for x
   x = 1,809,934.15/1,662.59
6. Step 6: Final answer
   x = 1,088.62