Finding the Fourth Proportional to 2,111.82, 3,168.65 and 1,136.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.82 : 3,168.65 = 1,136.78 : x
2. Step 2: Convert to fraction form
   2,111.82/3,168.65 = 1,136.78/x
3. Step 3: Cross multiply
   2,111.82x = 3,168.65 × 1,136.78
4. Step 4: Simplify right side
   2,111.82x = 3,602,057.95
5. Step 5: Solve for x
   x = 3,602,057.95/2,111.82
6. Step 6: Final answer
   x = 1,705.67