Finding the Fourth Proportional to 2,111.08, 3,169.62 and 1,186.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.08 : 3,169.62 = 1,186.48 : x
2. Step 2: Convert to fraction form
   2,111.08/3,169.62 = 1,186.48/x
3. Step 3: Cross multiply
   2,111.08x = 3,169.62 × 1,186.48
4. Step 4: Simplify right side
   2,111.08x = 3,760,690.74
5. Step 5: Solve for x
   x = 3,760,690.74/2,111.08
6. Step 6: Final answer
   x = 1,781.41