Finding the Fourth Proportional to 1,488.55, 2,229.22 and 745.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.55 : 2,229.22 = 745.82 : x
2. Step 2: Convert to fraction form
   1,488.55/2,229.22 = 745.82/x
3. Step 3: Cross multiply
   1,488.55x = 2,229.22 × 745.82
4. Step 4: Simplify right side
   1,488.55x = 1,662,598.14
5. Step 5: Solve for x
   x = 1,662,598.14/1,488.55
6. Step 6: Final answer
   x = 1,116.93