Finding the Fourth Proportional to 1,404.50, 2,105.67 and 754.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.50 : 2,105.67 = 754.34 : x
2. Step 2: Convert to fraction form
   1,404.50/2,105.67 = 754.34/x
3. Step 3: Cross multiply
   1,404.50x = 2,105.67 × 754.34
4. Step 4: Simplify right side
   1,404.50x = 1,588,391.11
5. Step 5: Solve for x
   x = 1,588,391.11/1,404.50
6. Step 6: Final answer
   x = 1,130.93