Finding the Fourth Proportional to 1,930.86, 2,665.98 and 1,185.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.86 : 2,665.98 = 1,185.83 : x
2. Step 2: Convert to fraction form
   1,930.86/2,665.98 = 1,185.83/x
3. Step 3: Cross multiply
   1,930.86x = 2,665.98 × 1,185.83
4. Step 4: Simplify right side
   1,930.86x = 3,161,399.06
5. Step 5: Solve for x
   x = 3,161,399.06/1,930.86
6. Step 6: Final answer
   x = 1,637.30