Finding the Fourth Proportional to 1,071.75, 1,598.78 and 908.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.75 : 1,598.78 = 908.24 : x
2. Step 2: Convert to fraction form
   1,071.75/1,598.78 = 908.24/x
3. Step 3: Cross multiply
   1,071.75x = 1,598.78 × 908.24
4. Step 4: Simplify right side
   1,071.75x = 1,452,075.40
5. Step 5: Solve for x
   x = 1,452,075.40/1,071.75
6. Step 6: Final answer
   x = 1,354.86