Finding the Fourth Proportional to 2,111.93, 3,168.60 and 1,189.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.93 : 3,168.60 = 1,189.29 : x
2. Step 2: Convert to fraction form
   2,111.93/3,168.60 = 1,189.29/x
3. Step 3: Cross multiply
   2,111.93x = 3,168.60 × 1,189.29
4. Step 4: Simplify right side
   2,111.93x = 3,768,384.29
5. Step 5: Solve for x
   x = 3,768,384.29/2,111.93
6. Step 6: Final answer
   x = 1,784.33