Finding the Fourth Proportional to 2,411.16, 3,615.12 and 1,178.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.16 : 3,615.12 = 1,178.88 : x
2. Step 2: Convert to fraction form
   2,411.16/3,615.12 = 1,178.88/x
3. Step 3: Cross multiply
   2,411.16x = 3,615.12 × 1,178.88
4. Step 4: Simplify right side
   2,411.16x = 4,261,792.67
5. Step 5: Solve for x
   x = 4,261,792.67/2,411.16
6. Step 6: Final answer
   x = 1,767.53