Finding the Fourth Proportional to 1,185.59, 1,778.84 and 1,049.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.59 : 1,778.84 = 1,049.81 : x
2. Step 2: Convert to fraction form
   1,185.59/1,778.84 = 1,049.81/x
3. Step 3: Cross multiply
   1,185.59x = 1,778.84 × 1,049.81
4. Step 4: Simplify right side
   1,185.59x = 1,867,433.81
5. Step 5: Solve for x
   x = 1,867,433.81/1,185.59
6. Step 6: Final answer
   x = 1,575.11