Finding the Fourth Proportional to 2,407.76, 3,608.79 and 1,172.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.76 : 3,608.79 = 1,172.33 : x
2. Step 2: Convert to fraction form
   2,407.76/3,608.79 = 1,172.33/x
3. Step 3: Cross multiply
   2,407.76x = 3,608.79 × 1,172.33
4. Step 4: Simplify right side
   2,407.76x = 4,230,692.78
5. Step 5: Solve for x
   x = 4,230,692.78/2,407.76
6. Step 6: Final answer
   x = 1,757.11