Finding the Fourth Proportional to 1,171.59, 1,617.55 and 752.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.59 : 1,617.55 = 752.12 : x
2. Step 2: Convert to fraction form
   1,171.59/1,617.55 = 752.12/x
3. Step 3: Cross multiply
   1,171.59x = 1,617.55 × 752.12
4. Step 4: Simplify right side
   1,171.59x = 1,216,593.87
5. Step 5: Solve for x
   x = 1,216,593.87/1,171.59
6. Step 6: Final answer
   x = 1,038.41