Finding the Fourth Proportional to 1,665.82, 2,495.89 and 933.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.82 : 2,495.89 = 933.58 : x
2. Step 2: Convert to fraction form
   1,665.82/2,495.89 = 933.58/x
3. Step 3: Cross multiply
   1,665.82x = 2,495.89 × 933.58
4. Step 4: Simplify right side
   1,665.82x = 2,330,112.99
5. Step 5: Solve for x
   x = 2,330,112.99/1,665.82
6. Step 6: Final answer
   x = 1,398.78