Finding the Fourth Proportional to 1,109.43, 1,665.37 and 944.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.43 : 1,665.37 = 944.35 : x
2. Step 2: Convert to fraction form
   1,109.43/1,665.37 = 944.35/x
3. Step 3: Cross multiply
   1,109.43x = 1,665.37 × 944.35
4. Step 4: Simplify right side
   1,109.43x = 1,572,692.16
5. Step 5: Solve for x
   x = 1,572,692.16/1,109.43
6. Step 6: Final answer
   x = 1,417.57