Finding the Fourth Proportional to 1,918.24, 2,647.92 and 1,359.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.24 : 2,647.92 = 1,359.52 : x
2. Step 2: Convert to fraction form
   1,918.24/2,647.92 = 1,359.52/x
3. Step 3: Cross multiply
   1,918.24x = 2,647.92 × 1,359.52
4. Step 4: Simplify right side
   1,918.24x = 3,599,900.20
5. Step 5: Solve for x
   x = 3,599,900.20/1,918.24
6. Step 6: Final answer
   x = 1,876.67