Finding the Fourth Proportional to 1,133.55, 1,696.98 and 1,105.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133.55 : 1,696.98 = 1,105.60 : x
2. Step 2: Convert to fraction form
   1,133.55/1,696.98 = 1,105.60/x
3. Step 3: Cross multiply
   1,133.55x = 1,696.98 × 1,105.60
4. Step 4: Simplify right side
   1,133.55x = 1,876,175.56
5. Step 5: Solve for x
   x = 1,876,175.56/1,133.55
6. Step 6: Final answer
   x = 1,655.14