Finding the Fourth Proportional to 1,103.38, 1,651.56 and 614.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.38 : 1,651.56 = 614.95 : x
2. Step 2: Convert to fraction form
   1,103.38/1,651.56 = 614.95/x
3. Step 3: Cross multiply
   1,103.38x = 1,651.56 × 614.95
4. Step 4: Simplify right side
   1,103.38x = 1,015,626.82
5. Step 5: Solve for x
   x = 1,015,626.82/1,103.38
6. Step 6: Final answer
   x = 920.47