Finding the Fourth Proportional to 1,673.31, 2,513.81 and 1,180.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.31 : 2,513.81 = 1,180.85 : x
2. Step 2: Convert to fraction form
   1,673.31/2,513.81 = 1,180.85/x
3. Step 3: Cross multiply
   1,673.31x = 2,513.81 × 1,180.85
4. Step 4: Simplify right side
   1,673.31x = 2,968,432.54
5. Step 5: Solve for x
   x = 2,968,432.54/1,673.31
6. Step 6: Final answer
   x = 1,773.99