Finding the Fourth Proportional to 1,185.34, 1,778 and 930.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.34 : 1,778 = 930.46 : x
2. Step 2: Convert to fraction form
   1,185.34/1,778 = 930.46/x
3. Step 3: Cross multiply
   1,185.34x = 1,778 × 930.46
4. Step 4: Simplify right side
   1,185.34x = 1,654,357.88
5. Step 5: Solve for x
   x = 1,654,357.88/1,185.34
6. Step 6: Final answer
   x = 1,395.68