Finding the Fourth Proportional to 1,366.72, 1,886.07 and 745.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.72 : 1,886.07 = 745.72 : x
2. Step 2: Convert to fraction form
   1,366.72/1,886.07 = 745.72/x
3. Step 3: Cross multiply
   1,366.72x = 1,886.07 × 745.72
4. Step 4: Simplify right side
   1,366.72x = 1,406,480.12
5. Step 5: Solve for x
   x = 1,406,480.12/1,366.72
6. Step 6: Final answer
   x = 1,029.09