Finding the Fourth Proportional to 1,945.54, 2,915.27 and 1,067.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.54 : 2,915.27 = 1,067.30 : x
2. Step 2: Convert to fraction form
   1,945.54/2,915.27 = 1,067.30/x
3. Step 3: Cross multiply
   1,945.54x = 2,915.27 × 1,067.30
4. Step 4: Simplify right side
   1,945.54x = 3,111,467.67
5. Step 5: Solve for x
   x = 3,111,467.67/1,945.54
6. Step 6: Final answer
   x = 1,599.28