Finding the Fourth Proportional to 1,164.40, 1,603.74 and 1,076.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.40 : 1,603.74 = 1,076.82 : x
2. Step 2: Convert to fraction form
   1,164.40/1,603.74 = 1,076.82/x
3. Step 3: Cross multiply
   1,164.40x = 1,603.74 × 1,076.82
4. Step 4: Simplify right side
   1,164.40x = 1,726,939.31
5. Step 5: Solve for x
   x = 1,726,939.31/1,164.40
6. Step 6: Final answer
   x = 1,483.12