Finding the Fourth Proportional to 1,065.76, 1,471.28 and 751.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.76 : 1,471.28 = 751.72 : x
2. Step 2: Convert to fraction form
   1,065.76/1,471.28 = 751.72/x
3. Step 3: Cross multiply
   1,065.76x = 1,471.28 × 751.72
4. Step 4: Simplify right side
   1,065.76x = 1,105,990.60
5. Step 5: Solve for x
   x = 1,105,990.60/1,065.76
6. Step 6: Final answer
   x = 1,037.75