Finding the Fourth Proportional to 1,756.10, 2,425.46 and 1,165.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,756.10 : 2,425.46 = 1,165.61 : x
2. Step 2: Convert to fraction form
   1,756.10/2,425.46 = 1,165.61/x
3. Step 3: Cross multiply
   1,756.10x = 2,425.46 × 1,165.61
4. Step 4: Simplify right side
   1,756.10x = 2,827,122.48
5. Step 5: Solve for x
   x = 2,827,122.48/1,756.10
6. Step 6: Final answer
   x = 1,609.89