Finding the Fourth Proportional to 1,109.38, 1,662.50 and 616.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.38 : 1,662.50 = 616.00 : x
2. Step 2: Convert to fraction form
   1,109.38/1,662.50 = 616.00/x
3. Step 3: Cross multiply
   1,109.38x = 1,662.50 × 616.00
4. Step 4: Simplify right side
   1,109.38x = 1,024,101.08
5. Step 5: Solve for x
   x = 1,024,101.08/1,109.38
6. Step 6: Final answer
   x = 923.13