Finding the Fourth Proportional to 1,932.01, 2,665.17 and 1,185.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.01 : 2,665.17 = 1,185.80 : x
2. Step 2: Convert to fraction form
   1,932.01/2,665.17 = 1,185.80/x
3. Step 3: Cross multiply
   1,932.01x = 2,665.17 × 1,185.80
4. Step 4: Simplify right side
   1,932.01x = 3,160,345.26
5. Step 5: Solve for x
   x = 3,160,345.26/1,932.01
6. Step 6: Final answer
   x = 1,635.78