Finding the Fourth Proportional to 1,291.82, 1,936.04 and 598.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.82 : 1,936.04 = 598.40 : x
2. Step 2: Convert to fraction form
   1,291.82/1,936.04 = 598.40/x
3. Step 3: Cross multiply
   1,291.82x = 1,936.04 × 598.40
4. Step 4: Simplify right side
   1,291.82x = 1,158,526.34
5. Step 5: Solve for x
   x = 1,158,526.34/1,291.82
6. Step 6: Final answer
   x = 896.82