Finding the Fourth Proportional to 2,186.56, 3,017.45 and 1,191.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.56 : 3,017.45 = 1,191.84 : x
2. Step 2: Convert to fraction form
   2,186.56/3,017.45 = 1,191.84/x
3. Step 3: Cross multiply
   2,186.56x = 3,017.45 × 1,191.84
4. Step 4: Simplify right side
   2,186.56x = 3,596,317.61
5. Step 5: Solve for x
   x = 3,596,317.61/2,186.56
6. Step 6: Final answer
   x = 1,644.74