Finding the Fourth Proportional to 1,745.32, 2,616.72 and 880.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,745.32 : 2,616.72 = 880.24 : x
2. Step 2: Convert to fraction form
   1,745.32/2,616.72 = 880.24/x
3. Step 3: Cross multiply
   1,745.32x = 2,616.72 × 880.24
4. Step 4: Simplify right side
   1,745.32x = 2,303,341.61
5. Step 5: Solve for x
   x = 2,303,341.61/1,745.32
6. Step 6: Final answer
   x = 1,319.72