Finding the Fourth Proportional to 2,173.29, 3,256.89 and 1,186.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.29 : 3,256.89 = 1,186.10 : x
2. Step 2: Convert to fraction form
   2,173.29/3,256.89 = 1,186.10/x
3. Step 3: Cross multiply
   2,173.29x = 3,256.89 × 1,186.10
4. Step 4: Simplify right side
   2,173.29x = 3,862,997.23
5. Step 5: Solve for x
   x = 3,862,997.23/2,173.29
6. Step 6: Final answer
   x = 1,777.49