Finding the Fourth Proportional to 1,403.61, 1,935.71 and 1,168.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.61 : 1,935.71 = 1,168.34 : x
2. Step 2: Convert to fraction form
   1,403.61/1,935.71 = 1,168.34/x
3. Step 3: Cross multiply
   1,403.61x = 1,935.71 × 1,168.34
4. Step 4: Simplify right side
   1,403.61x = 2,261,556.28
5. Step 5: Solve for x
   x = 2,261,556.28/1,403.61
6. Step 6: Final answer
   x = 1,611.25