Finding the Fourth Proportional to 1,103.14, 1,522.48 and 678.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.14 : 1,522.48 = 678.02 : x
2. Step 2: Convert to fraction form
   1,103.14/1,522.48 = 678.02/x
3. Step 3: Cross multiply
   1,103.14x = 1,522.48 × 678.02
4. Step 4: Simplify right side
   1,103.14x = 1,032,271.89
5. Step 5: Solve for x
   x = 1,032,271.89/1,103.14
6. Step 6: Final answer
   x = 935.76