Finding the Fourth Proportional to 1,037.76, 1,431.42 and 753.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,037.76 : 1,431.42 = 753.71 : x
2. Step 2: Convert to fraction form
   1,037.76/1,431.42 = 753.71/x
3. Step 3: Cross multiply
   1,037.76x = 1,431.42 × 753.71
4. Step 4: Simplify right side
   1,037.76x = 1,078,869.82
5. Step 5: Solve for x
   x = 1,078,869.82/1,037.76
6. Step 6: Final answer
   x = 1,039.61