Finding the Fourth Proportional to 1,109.00, 1,530.41 and 611.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.00 : 1,530.41 = 611.63 : x
2. Step 2: Convert to fraction form
   1,109.00/1,530.41 = 611.63/x
3. Step 3: Cross multiply
   1,109.00x = 1,530.41 × 611.63
4. Step 4: Simplify right side
   1,109.00x = 936,038.55
5. Step 5: Solve for x
   x = 936,038.55/1,109.00
6. Step 6: Final answer
   x = 844.04