Finding the Fourth Proportional to 2,185.71, 3,016.27 and 1,190.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.71 : 3,016.27 = 1,190.98 : x
2. Step 2: Convert to fraction form
   2,185.71/3,016.27 = 1,190.98/x
3. Step 3: Cross multiply
   2,185.71x = 3,016.27 × 1,190.98
4. Step 4: Simplify right side
   2,185.71x = 3,592,317.24
5. Step 5: Solve for x
   x = 3,592,317.24/2,185.71
6. Step 6: Final answer
   x = 1,643.55