Finding the Fourth Proportional to 1,664.30, 2,499.15 and 935.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.30 : 2,499.15 = 935.30 : x
2. Step 2: Convert to fraction form
   1,664.30/2,499.15 = 935.30/x
3. Step 3: Cross multiply
   1,664.30x = 2,499.15 × 935.30
4. Step 4: Simplify right side
   1,664.30x = 2,337,455.00
5. Step 5: Solve for x
   x = 2,337,455.00/1,664.30
6. Step 6: Final answer
   x = 1,404.47