Finding the Fourth Proportional to 1,349.58, 2,012.43 and 1,185.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.58 : 2,012.43 = 1,185.72 : x
2. Step 2: Convert to fraction form
   1,349.58/2,012.43 = 1,185.72/x
3. Step 3: Cross multiply
   1,349.58x = 2,012.43 × 1,185.72
4. Step 4: Simplify right side
   1,349.58x = 2,386,178.50
5. Step 5: Solve for x
   x = 2,386,178.50/1,349.58
6. Step 6: Final answer
   x = 1,768.09