Finding the Fourth Proportional to 1,598.32, 2,205.78 and 935.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,598.32 : 2,205.78 = 935.38 : x
2. Step 2: Convert to fraction form
   1,598.32/2,205.78 = 935.38/x
3. Step 3: Cross multiply
   1,598.32x = 2,205.78 × 935.38
4. Step 4: Simplify right side
   1,598.32x = 2,063,242.50
5. Step 5: Solve for x
   x = 2,063,242.50/1,598.32
6. Step 6: Final answer
   x = 1,290.88