Finding the Fourth Proportional to 1,381.27, 1,906.20 and 751.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.27 : 1,906.20 = 751.85 : x
2. Step 2: Convert to fraction form
   1,381.27/1,906.20 = 751.85/x
3. Step 3: Cross multiply
   1,381.27x = 1,906.20 × 751.85
4. Step 4: Simplify right side
   1,381.27x = 1,433,174.09
5. Step 5: Solve for x
   x = 1,433,174.09/1,381.27
6. Step 6: Final answer
   x = 1,037.58