Finding the Fourth Proportional to 1,173.61, 1,618.86 and 754.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.61 : 1,618.86 = 754.52 : x
2. Step 2: Convert to fraction form
   1,173.61/1,618.86 = 754.52/x
3. Step 3: Cross multiply
   1,173.61x = 1,618.86 × 754.52
4. Step 4: Simplify right side
   1,173.61x = 1,221,454.86
5. Step 5: Solve for x
   x = 1,221,454.86/1,173.61
6. Step 6: Final answer
   x = 1,040.76