Finding the Fourth Proportional to 1,611.10, 2,223.57 and 1,168.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.10 : 2,223.57 = 1,168.84 : x
2. Step 2: Convert to fraction form
   1,611.10/2,223.57 = 1,168.84/x
3. Step 3: Cross multiply
   1,611.10x = 2,223.57 × 1,168.84
4. Step 4: Simplify right side
   1,611.10x = 2,598,997.56
5. Step 5: Solve for x
   x = 2,598,997.56/1,611.10
6. Step 6: Final answer
   x = 1,613.18