Finding the Fourth Proportional to 1,665.46, 2,499.10 and 935.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.46 : 2,499.10 = 935.09 : x
2. Step 2: Convert to fraction form
   1,665.46/2,499.10 = 935.09/x
3. Step 3: Cross multiply
   1,665.46x = 2,499.10 × 935.09
4. Step 4: Simplify right side
   1,665.46x = 2,336,897.27
5. Step 5: Solve for x
   x = 2,336,897.27/1,665.46
6. Step 6: Final answer
   x = 1,403.15